code,description,category,category_hub,guide_url,scope,source,caution
P0001,Fuel volume regulator control circuit open,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/p0001-p0004/,Core diesel injection DTC,submitted 115 groups,Electrical continuity issue associated with metering actuator control.
P0002,Fuel volume regulator control range/performance,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/p0001-p0004/,Core diesel injection DTC,submitted 115 groups,Actuator response or monitoring performance concern.
P0003,Fuel volume regulator control circuit low,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/p0001-p0004/,Core diesel injection DTC,submitted 115 groups,Low control circuit state; follow exact OEM schematic.
P0004,Fuel volume regulator control circuit high,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/p0001-p0004/,Core diesel injection DTC,submitted 115 groups,High control circuit state; follow exact OEM schematic.
P0005,Fuel shutoff valve control circuit open,Fuel quality and shutoff,/diesel-dtc/fuel-quality-shutoff/,/diesel-dtc/fuel-shutoff-control/,Core diesel injection DTC,submitted 115 groups,Shutoff actuator cannot be reliably commanded across an open circuit.
P0006,Fuel shutoff valve control circuit low,Fuel quality and shutoff,/diesel-dtc/fuel-quality-shutoff/,/diesel-dtc/fuel-shutoff-control/,Core diesel injection DTC,submitted 115 groups,Shutoff control circuit low state.
P0007,Fuel shutoff valve control circuit high,Fuel quality and shutoff,/diesel-dtc/fuel-quality-shutoff/,/diesel-dtc/fuel-shutoff-control/,Core diesel injection DTC,submitted 115 groups,Shutoff control circuit high state.
P000E,Fuel volume regulator exceeded learning limits,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/p0001-p0004/,Core diesel injection DTC,submitted 115 groups,Control adaptation has reached its calibration boundary; identify why correction is necessary.
P000F,Fuel system overpressure relief valve activated,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/pressure-relief-p000f-p018f/,Core diesel injection DTC,submitted 115 groups,"A relief event may be a symptom of control trouble, not only a relief-valve defect."
P0016,Crankshaft/camshaft position correlation,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0087,Rail/system pressure too low,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/p0087/,Core diesel injection DTC,submitted 115 groups,"Actual rail pressure is insufficient versus a calibrated target; verify supply, leakage, pump control, and feedback."
P0088,Rail/system pressure too high,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/p0088/,Core diesel injection DTC,submitted 115 groups,"Control-system overpressure concern; examine regulation, metering and sensor interpretation."
P0089,Fuel pressure regulator 1 performance,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/p0089/,Core diesel injection DTC,submitted 115 groups,Pressure regulation performance is suspect; command/feedback/supply relationship comes first.
P008A,Low-pressure fuel supply too low,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/p008a/,Core diesel injection DTC,submitted 115 groups,"Low-side supply fault where monitored; filter, pump, electrical control, restrictions, and air intrusion matter."
P008B,Low-pressure fuel supply too high,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/p008b/,Core diesel injection DTC,submitted 115 groups,Excessive supply pressure; investigate return restrictions and control strategy.
P0090,Pressure regulator 1 control circuit/open,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/p0089/,Core diesel injection DTC,submitted 115 groups,Control circuit may be open; use wiring diagrams and commanded tests.
P0091,Pressure regulator 1 control circuit low,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/p0089/,Core diesel injection DTC,submitted 115 groups,Electrical low-state concern; identify the device and its circuit before testing.
P0092,Pressure regulator 1 control circuit high,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/p0089/,Core diesel injection DTC,submitted 115 groups,"Electrical high-state concern; verify harness, supply, ground and driver behavior."
P0093,Fuel system leak detected—large,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/p0093/,Core diesel injection DTC,submitted 115 groups,On some systems inferred from pressure or metering behavior; not proof of an external leak.
P0094,Fuel system leak detected—small,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/p0094/,Core diesel injection DTC,submitted 115 groups,"Small-leak monitoring logic varies by OEM; distinguish internal, external, and control-related causes."
P009B,Fuel pressure relief control circuit open,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-relief-control/,Core diesel injection DTC,submitted 115 groups,Relief-control actuation circuit open.
P009C,Fuel pressure relief control circuit low,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-relief-control/,Core diesel injection DTC,submitted 115 groups,Relief-control circuit low state.
P009D,Fuel pressure relief control circuit high,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-relief-control/,Core diesel injection DTC,submitted 115 groups,Relief-control circuit high state.
P009E,Fuel pressure relief control performance/stuck off,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-relief-control/,Core diesel injection DTC,submitted 115 groups,A relief-control device may fail to respond; verify device type and command.
P009F,Fuel pressure relief control stuck on,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-relief-control/,Core diesel injection DTC,submitted 115 groups,Relief control may remain active when it should not.
P00C6,Rail pressure too low during cranking,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/p00c6/,Core diesel injection DTC,submitted 115 groups,Starting-phase pressure criterion was not achieved; cranking speed and fuel delivery prerequisites matter.
P0101,Mass or volume airflow sensor range/performance,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0148,Fuel delivery error,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/p0148/,Core diesel injection DTC,submitted 115 groups,Requested and observed fuel delivery disagree on supported systems; check pump control and supply.
P0149,Fuel timing error,Pump timing and learned calibration,/diesel-dtc/pump-timing-offset-calibration/,/diesel-dtc/pump-timing-offset-calibration/,Injection pump timing/calibration,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0168,Fuel temperature too high,Additional fuel control codes,/diesel-dtc/additional-fuel-control-codes/,/diesel-dtc/additional-fuel-control-codes/,Supporting or application-specific,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P016D,Excessive time to enter closed-loop fuel pressure control,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/closed-loop-pressure-control/,Core diesel injection DTC,submitted 115 groups,Controller took too long to establish stable pressure regulation.
P016E,Closed-loop fuel pressure control at high limit,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/closed-loop-pressure-control/,Core diesel injection DTC,submitted 115 groups,Controller reaches a high-pressure control boundary; not automatic proof of a failed regulator.
P016F,Closed-loop fuel pressure control at low limit,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/closed-loop-pressure-control/,Core diesel injection DTC,submitted 115 groups,Controller reaches a pressure-related limit; investigate why sufficient pressure cannot be sustained.
P0180,Fuel temperature sensor A circuit,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-temperature-codes/,Supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0181,Fuel temperature sensor A range/performance,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-temperature-codes/,Supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0182,Fuel temperature sensor A circuit low,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-temperature-codes/,Supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0183,Fuel temperature sensor A circuit high,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-temperature-codes/,Supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0184,Fuel temperature sensor A intermittent,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-temperature-codes/,Supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0185,Fuel temperature sensor B circuit,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-temperature-codes/,Supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0186,Fuel temperature sensor B range/performance,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-temperature-codes/,Supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0187,Fuel temperature sensor B circuit low,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-temperature-codes/,Supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0188,Fuel temperature sensor B circuit high,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-temperature-codes/,Supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0189,Fuel temperature sensor B intermittent,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-temperature-codes/,Supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P018A,Fuel pressure sensor B circuit fault,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-pressure-sensor-b/,Core diesel injection DTC,submitted 115 groups,Secondary fuel pressure sensor circuit fault; identify exact physical sensor.
P018B,Fuel pressure sensor B range/performance,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-pressure-sensor-b/,Core diesel injection DTC,submitted 115 groups,Plausibility or performance problem on sensor B feedback.
P018C,Fuel pressure sensor B circuit low,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-pressure-sensor-b/,Core diesel injection DTC,submitted 115 groups,Secondary sensor B circuit low state.
P018D,Fuel pressure sensor B circuit high,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-pressure-sensor-b/,Core diesel injection DTC,submitted 115 groups,Secondary sensor B circuit high state.
P018E,Fuel pressure sensor B intermittent/erratic,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/fuel-pressure-sensor-b/,Core diesel injection DTC,submitted 115 groups,Intermittent secondary pressure signal; capture conditions during the fault.
P018F,Fuel system overpressure relief valve frequently activated,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/pressure-relief-p000f-p018f/,Core diesel injection DTC,submitted 115 groups,Repeated activation needs control and relief integrity evaluation.
P0190,Fuel rail pressure sensor circuit fault,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/p0192-p0194/,Core diesel injection DTC,submitted 115 groups,General pressure-sensor circuit malfunction; differentiate wiring from hydraulics.
P0191,Rail pressure sensor range/performance,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/p0191/,Core diesel injection DTC,submitted 115 groups,Sensor plausibility can fail despite an electrically in-range signal; do not assume actual pressure is low.
P0192,Fuel rail pressure sensor circuit low,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/p0192-p0194/,Core diesel injection DTC,submitted 115 groups,"Low sensor-circuit signal may be an electrical fault, not low physical pressure."
P0193,Fuel rail pressure sensor circuit high,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/p0192-p0194/,Core diesel injection DTC,submitted 115 groups,"High sensor-circuit signal may be an electrical fault, not excessive physical pressure."
P0194,Fuel rail pressure sensor intermittent/erratic,Pressure and temperature sensors,/diesel-dtc/fuel-pressure-sensors/,/diesel-dtc/p0192-p0194/,Core diesel injection DTC,submitted 115 groups,Intermittent signal behavior needs event capture and connector/harness inspection.
P01CB,"Injector timing over-retarded, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears delayed; OEM calibration history may matter.
P01CC,"Injector timing over-advanced, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears advanced; verify application and service bulletins.
P01CD,"Injector timing over-retarded, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears delayed; OEM calibration history may matter.
P01CE,"Injector timing over-advanced, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears advanced; verify application and service bulletins.
P01CF,"Injector timing over-retarded, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears delayed; OEM calibration history may matter.
P01D0,"Injector timing over-advanced, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears advanced; verify application and service bulletins.
P01D1,"Injector timing over-retarded, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears delayed; OEM calibration history may matter.
P01D2,"Injector timing over-advanced, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears advanced; verify application and service bulletins.
P01D3,"Injector timing over-retarded, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears delayed; OEM calibration history may matter.
P01D4,"Injector timing over-advanced, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears advanced; verify application and service bulletins.
P01D5,"Injector timing over-retarded, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears delayed; OEM calibration history may matter.
P01D6,"Injector timing over-advanced, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears advanced; verify application and service bulletins.
P01D7,"Injector timing over-retarded, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears delayed; OEM calibration history may matter.
P01D8,"Injector timing over-advanced, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears advanced; verify application and service bulletins.
P01D9,"Injector timing over-retarded, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears delayed; OEM calibration history may matter.
P01DA,"Injector timing over-advanced, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Learned or measured timing appears advanced; verify application and service bulletins.
P0200,"Fuel injector circuit malfunction, nonspecific cylinder",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/p0201-p0208/,Core diesel injection DTC,submitted 115 groups,Injector circuit detected without cylinder-specific isolation; shared wiring and driver problems matter.
P0201,"Injector circuit faults, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/p0201-p0208/,Core diesel injection DTC,submitted 115 groups,"Investigate individual injector electrical paths, connectors, wiring and drivers before condemnation."
P0202,"Injector circuit faults, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/p0201-p0208/,Core diesel injection DTC,submitted 115 groups,"Investigate individual injector electrical paths, connectors, wiring and drivers before condemnation."
P0203,"Injector circuit faults, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/p0201-p0208/,Core diesel injection DTC,submitted 115 groups,"Investigate individual injector electrical paths, connectors, wiring and drivers before condemnation."
P0204,"Injector circuit faults, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/p0201-p0208/,Core diesel injection DTC,submitted 115 groups,"Investigate individual injector electrical paths, connectors, wiring and drivers before condemnation."
P0205,"Injector circuit faults, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/p0201-p0208/,Core diesel injection DTC,submitted 115 groups,"Investigate individual injector electrical paths, connectors, wiring and drivers before condemnation."
P0206,"Injector circuit faults, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/p0201-p0208/,Core diesel injection DTC,submitted 115 groups,"Investigate individual injector electrical paths, connectors, wiring and drivers before condemnation."
P0207,"Injector circuit faults, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/p0201-p0208/,Core diesel injection DTC,submitted 115 groups,"Investigate individual injector electrical paths, connectors, wiring and drivers before condemnation."
P0208,"Injector circuit faults, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/p0201-p0208/,Core diesel injection DTC,submitted 115 groups,"Investigate individual injector electrical paths, connectors, wiring and drivers before condemnation."
P0209,Cylinder 9 injector circuit/open,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P020A,"Cylinder injection timing faults, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Cylinder-specific timing discrepancy requires synchronization and injector-control checks.
P020B,"Cylinder injection timing faults, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Cylinder-specific timing discrepancy requires synchronization and injector-control checks.
P020C,"Cylinder injection timing faults, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Cylinder-specific timing discrepancy requires synchronization and injector-control checks.
P020D,"Cylinder injection timing faults, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Cylinder-specific timing discrepancy requires synchronization and injector-control checks.
P020E,"Cylinder injection timing faults, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Cylinder-specific timing discrepancy requires synchronization and injector-control checks.
P020F,"Cylinder injection timing faults, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Cylinder-specific timing discrepancy requires synchronization and injector-control checks.
P0210,Cylinder 10 injector circuit/open,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0211,Cylinder 11 injector circuit/open,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0212,Cylinder 12 injector circuit/open,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0215,Engine shutoff solenoid malfunction,Fuel quality and shutoff,/diesel-dtc/fuel-quality-shutoff/,/diesel-dtc/fuel-shutoff-control/,Core diesel injection DTC,submitted 115 groups,Shutoff solenoid control concern; application-specific architecture.
P0216,Fuel injection timing control circuit malfunction,Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/p0216/,Core diesel injection DTC,submitted 115 groups,Timing-control fault particularly relevant to applicable older electronic pump systems.
P021A,"Cylinder injection timing faults, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Cylinder-specific timing discrepancy requires synchronization and injector-control checks.
P021B,"Cylinder injection timing faults, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Cylinder-specific timing discrepancy requires synchronization and injector-control checks.
P021C,Cylinder 9 injection timing,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P021D,Cylinder 10 injection timing,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P021E,Cylinder 11 injection timing,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P021F,Cylinder 12 injection timing,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0230,Fuel pump primary circuit malfunction,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-electrical/,Core diesel injection DTC,submitted 115 groups,"Primary power/control circuit, not necessarily weak hydraulic delivery."
P0231,Fuel pump secondary circuit low,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-electrical/,Core diesel injection DTC,submitted 115 groups,Feedback or secondary circuit low; exact interpretation is application-dependent.
P0232,Fuel pump secondary circuit high,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-electrical/,Core diesel injection DTC,submitted 115 groups,Feedback or secondary circuit high; exact interpretation is application-dependent.
P0233,Fuel pump secondary circuit intermittent,Additional fuel control codes,/diesel-dtc/additional-fuel-control-codes/,/diesel-dtc/additional-fuel-control-codes/,Additional injection-related code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P023F,Fuel pump secondary circuit/open,Additional fuel control codes,/diesel-dtc/additional-fuel-control-codes/,/diesel-dtc/additional-fuel-control-codes/,Additional injection-related code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0251,Injection pump fuel metering control A malfunction,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/p0251/,Core diesel injection DTC,submitted 115 groups,Definition and monitored device vary considerably between older pump systems and newer engines.
P0252,Injection pump metering control A range/performance,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/pump-metering-a/,Core diesel injection DTC,submitted 115 groups,Metering command and actual control behavior are inconsistent; check supply and signals.
P0253,Pump metering control A circuit low,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/pump-metering-a/,Core diesel injection DTC,submitted 115 groups,Metering circuit low electrical state; component identification is engine-specific.
P0254,Pump metering control A circuit high,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/pump-metering-a/,Core diesel injection DTC,submitted 115 groups,Metering circuit high electrical state; check driver and circuit rather than guessing pump wear.
P0255,Pump metering control A intermittent,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/pump-metering-a/,Core diesel injection DTC,submitted 115 groups,"Intermittent faults may be aggravated by vibration, heat and connector condition."
P0256,Injection pump fuel metering B malfunction,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/pump-metering-b/,Core diesel injection DTC,submitted 115 groups,Metering control B fault where the system implements this circuit.
P0257,Injection pump fuel metering B range/performance,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/pump-metering-b/,Core diesel injection DTC,submitted 115 groups,Second metering-control performance family on equipped engines.
P0258,Injection pump fuel metering B circuit low,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/pump-metering-b/,Core diesel injection DTC,submitted 115 groups,Low electrical state on metering circuit B.
P0259,Injection pump fuel metering B circuit high,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/pump-metering-b/,Core diesel injection DTC,submitted 115 groups,High electrical state on metering circuit B.
P025A,Fuel pump module control circuit open,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-module/,Core diesel injection DTC,submitted 115 groups,"Control-module command circuit open; distinguish controller, wiring and pump."
P025B,Fuel pump module control range/performance,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-module/,Core diesel injection DTC,submitted 115 groups,Module feedback or command response outside expected behavior.
P025C,Fuel pump module control circuit low,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-module/,Core diesel injection DTC,submitted 115 groups,Module control low state; electrical diagnosis required.
P025D,Fuel pump module control circuit high,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-module/,Core diesel injection DTC,submitted 115 groups,Module control high state; electrical diagnosis required.
P0260,Injection pump fuel metering B intermittent,Injection pump and metering,/diesel-dtc/injection-pump-faults/,/diesel-dtc/pump-metering-b/,Core diesel injection DTC,submitted 115 groups,Intermittent metering circuit B fault; inspect heat and vibration effects.
P0261,"Injector circuit low, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical low-input or low-circuit family; diagnose the relevant circuit rather than the nozzle.
P0262,"Injector circuit high, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical high-input or high-circuit family; verify actual driver and harness interpretation.
P0263,"Cylinder contribution/balance faults, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/cylinder-contribution/,Core diesel injection DTC,submitted 115 groups,Cylinder torque contribution is unequal; injector is only one possible cause.
P0264,"Injector circuit low, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical low-input or low-circuit family; diagnose the relevant circuit rather than the nozzle.
P0265,"Injector circuit high, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical high-input or high-circuit family; verify actual driver and harness interpretation.
P0266,"Cylinder contribution/balance faults, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/cylinder-contribution/,Core diesel injection DTC,submitted 115 groups,Cylinder torque contribution is unequal; injector is only one possible cause.
P0267,"Injector circuit low, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical low-input or low-circuit family; diagnose the relevant circuit rather than the nozzle.
P0268,"Injector circuit high, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical high-input or high-circuit family; verify actual driver and harness interpretation.
P0269,"Cylinder contribution/balance faults, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/cylinder-contribution/,Core diesel injection DTC,submitted 115 groups,Cylinder torque contribution is unequal; injector is only one possible cause.
P026B,Fuel injection timing performance,Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/cylinder-injection-timing/,Core diesel injection DTC,submitted 115 groups,Control/timing result varies from the expected injection event.
P026C,Fuel injection quantity lower than expected,Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/injection-quantity/,Core diesel injection DTC,submitted 115 groups,"Unexpectedly low injected quantity; establish whether injector, supply or data are responsible."
P026D,Fuel injection quantity higher than expected,Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/injection-quantity/,Core diesel injection DTC,submitted 115 groups,"Unexpectedly high injected quantity; possible injector, control and sensor influences."
P0270,"Injector circuit low, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical low-input or low-circuit family; diagnose the relevant circuit rather than the nozzle.
P0271,"Injector circuit high, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical high-input or high-circuit family; verify actual driver and harness interpretation.
P0272,"Cylinder contribution/balance faults, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/cylinder-contribution/,Core diesel injection DTC,submitted 115 groups,Cylinder torque contribution is unequal; injector is only one possible cause.
P0273,"Injector circuit low, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical low-input or low-circuit family; diagnose the relevant circuit rather than the nozzle.
P0274,"Injector circuit high, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical high-input or high-circuit family; verify actual driver and harness interpretation.
P0275,"Cylinder contribution/balance faults, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/cylinder-contribution/,Core diesel injection DTC,submitted 115 groups,Cylinder torque contribution is unequal; injector is only one possible cause.
P0276,"Injector circuit low, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical low-input or low-circuit family; diagnose the relevant circuit rather than the nozzle.
P0277,"Injector circuit high, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical high-input or high-circuit family; verify actual driver and harness interpretation.
P0278,"Cylinder contribution/balance faults, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/cylinder-contribution/,Core diesel injection DTC,submitted 115 groups,Cylinder torque contribution is unequal; injector is only one possible cause.
P0279,"Injector circuit low, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical low-input or low-circuit family; diagnose the relevant circuit rather than the nozzle.
P0280,"Injector circuit high, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical high-input or high-circuit family; verify actual driver and harness interpretation.
P0281,"Cylinder contribution/balance faults, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/cylinder-contribution/,Core diesel injection DTC,submitted 115 groups,Cylinder torque contribution is unequal; injector is only one possible cause.
P0282,"Injector circuit low, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical low-input or low-circuit family; diagnose the relevant circuit rather than the nozzle.
P0283,"Injector circuit high, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-low-high/,Core diesel injection DTC,submitted 115 groups,Electrical high-input or high-circuit family; verify actual driver and harness interpretation.
P0284,"Cylinder contribution/balance faults, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/cylinder-contribution/,Core diesel injection DTC,submitted 115 groups,Cylinder torque contribution is unequal; injector is only one possible cause.
P0285,Cylinder 9 injector circuit low,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0286,Cylinder 9 injector circuit high,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0287,Cylinder 9 contribution/balance,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0288,Cylinder 10 injector circuit low,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0289,Cylinder 10 injector circuit high,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0290,Cylinder 10 contribution/balance,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0291,Cylinder 11 injector circuit low,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0292,Cylinder 11 injector circuit high,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0293,Cylinder 11 contribution/balance,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0294,Cylinder 12 injector circuit low,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0295,Cylinder 12 injector circuit high,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0296,Cylinder 12 contribution/balance,Additional cylinder-specific codes,/diesel-dtc/cylinders-9-12-injector-codes/,/diesel-dtc/cylinders-9-12-injector-codes/,High-cylinder-count engine,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0299,Turbocharger/supercharger underboost,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P029A,Cylinder 1 fuel trim at maximum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P029B,Cylinder 1 fuel trim at minimum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P029C,"Injector restricted, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/restricted-injectors/,Core diesel injection DTC,submitted 115 groups,"Code labels describe suspected cylinder-specific injector restriction, not a bench-confirmed result."
P029D,"Injector leaking, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/leaking-injectors/,Core diesel injection DTC,submitted 115 groups,"Consider nozzle leakage, internal return behavior and competing causes of abnormal fueling."
P029E,Cylinder 2 fuel trim at maximum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P029F,Cylinder 2 fuel trim at minimum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02A0,"Injector restricted, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/restricted-injectors/,Core diesel injection DTC,submitted 115 groups,"Code labels describe suspected cylinder-specific injector restriction, not a bench-confirmed result."
P02A1,"Injector leaking, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/leaking-injectors/,Core diesel injection DTC,submitted 115 groups,"Consider nozzle leakage, internal return behavior and competing causes of abnormal fueling."
P02A2,Cylinder 3 fuel trim at maximum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02A3,Cylinder 3 fuel trim at minimum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02A4,"Injector restricted, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/restricted-injectors/,Core diesel injection DTC,submitted 115 groups,"Code labels describe suspected cylinder-specific injector restriction, not a bench-confirmed result."
P02A5,"Injector leaking, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/leaking-injectors/,Core diesel injection DTC,submitted 115 groups,"Consider nozzle leakage, internal return behavior and competing causes of abnormal fueling."
P02A6,Cylinder 4 fuel trim at maximum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02A7,Cylinder 4 fuel trim at minimum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02A8,"Injector restricted, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/restricted-injectors/,Core diesel injection DTC,submitted 115 groups,"Code labels describe suspected cylinder-specific injector restriction, not a bench-confirmed result."
P02A9,"Injector leaking, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/leaking-injectors/,Core diesel injection DTC,submitted 115 groups,"Consider nozzle leakage, internal return behavior and competing causes of abnormal fueling."
P02AA,Cylinder 5 fuel trim at maximum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02AB,Cylinder 5 fuel trim at minimum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02AC,"Injector restricted, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/restricted-injectors/,Core diesel injection DTC,submitted 115 groups,"Code labels describe suspected cylinder-specific injector restriction, not a bench-confirmed result."
P02AD,"Injector leaking, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/leaking-injectors/,Core diesel injection DTC,submitted 115 groups,"Consider nozzle leakage, internal return behavior and competing causes of abnormal fueling."
P02AE,Cylinder 6 fuel trim at maximum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02AF,Cylinder 6 fuel trim at minimum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02B0,"Injector restricted, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/restricted-injectors/,Core diesel injection DTC,submitted 115 groups,"Code labels describe suspected cylinder-specific injector restriction, not a bench-confirmed result."
P02B1,"Injector leaking, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/leaking-injectors/,Core diesel injection DTC,submitted 115 groups,"Consider nozzle leakage, internal return behavior and competing causes of abnormal fueling."
P02B2,Cylinder 7 fuel trim at maximum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02B3,Cylinder 7 fuel trim at minimum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02B4,"Injector restricted, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/restricted-injectors/,Core diesel injection DTC,submitted 115 groups,"Code labels describe suspected cylinder-specific injector restriction, not a bench-confirmed result."
P02B5,"Injector leaking, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/leaking-injectors/,Core diesel injection DTC,submitted 115 groups,"Consider nozzle leakage, internal return behavior and competing causes of abnormal fueling."
P02B6,Cylinder 8 fuel trim at maximum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02B7,Cylinder 8 fuel trim at minimum limit,Injector fuel trim,/diesel-dtc/injector-fuel-trim-codes/,/diesel-dtc/injector-fuel-trim-codes/,Injector fuel-correction code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P02B8,"Injector restricted, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/restricted-injectors/,Core diesel injection DTC,submitted 115 groups,"Code labels describe suspected cylinder-specific injector restriction, not a bench-confirmed result."
P02B9,"Injector leaking, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/leaking-injectors/,Core diesel injection DTC,submitted 115 groups,"Consider nozzle leakage, internal return behavior and competing causes of abnormal fueling."
P02CC,"Injector offset learning at minimum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its minimum limit, which does not prove injector failure."
P02CD,"Injector offset learning at maximum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its maximum limit, which does not prove injector failure."
P02CE,"Injector offset learning at minimum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its minimum limit, which does not prove injector failure."
P02CF,"Injector offset learning at maximum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its maximum limit, which does not prove injector failure."
P02D0,"Injector offset learning at minimum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its minimum limit, which does not prove injector failure."
P02D1,"Injector offset learning at maximum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its maximum limit, which does not prove injector failure."
P02D2,"Injector offset learning at minimum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its minimum limit, which does not prove injector failure."
P02D3,"Injector offset learning at maximum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its maximum limit, which does not prove injector failure."
P02D4,"Injector offset learning at minimum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its minimum limit, which does not prove injector failure."
P02D5,"Injector offset learning at maximum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its maximum limit, which does not prove injector failure."
P02D6,"Injector offset learning at minimum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its minimum limit, which does not prove injector failure."
P02D7,"Injector offset learning at maximum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its maximum limit, which does not prove injector failure."
P02D8,"Injector offset learning at minimum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its minimum limit, which does not prove injector failure."
P02D9,"Injector offset learning at maximum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its maximum limit, which does not prove injector failure."
P02DA,"Injector offset learning at minimum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its minimum limit, which does not prove injector failure."
P02DB,"Injector offset learning at maximum, cylinders 1–8",Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-offset-learning/,Core diesel injection DTC,submitted 115 groups,"Correction reached its maximum limit, which does not prove injector failure."
P02EE,"Injector circuit range/performance, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-performance/,Core diesel injection DTC,submitted 115 groups,Injector electrical response or driver calibration did not behave as expected; architecture-dependent.
P02EF,"Injector circuit range/performance, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-performance/,Core diesel injection DTC,submitted 115 groups,Injector electrical response or driver calibration did not behave as expected; architecture-dependent.
P02F0,"Injector circuit range/performance, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-performance/,Core diesel injection DTC,submitted 115 groups,Injector electrical response or driver calibration did not behave as expected; architecture-dependent.
P02F1,"Injector circuit range/performance, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-performance/,Core diesel injection DTC,submitted 115 groups,Injector electrical response or driver calibration did not behave as expected; architecture-dependent.
P02F2,"Injector circuit range/performance, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-performance/,Core diesel injection DTC,submitted 115 groups,Injector electrical response or driver calibration did not behave as expected; architecture-dependent.
P02F3,"Injector circuit range/performance, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-performance/,Core diesel injection DTC,submitted 115 groups,Injector electrical response or driver calibration did not behave as expected; architecture-dependent.
P02F4,"Injector circuit range/performance, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-performance/,Core diesel injection DTC,submitted 115 groups,Injector electrical response or driver calibration did not behave as expected; architecture-dependent.
P02F5,"Injector circuit range/performance, cylinders 1–8",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-circuit-performance/,Core diesel injection DTC,submitted 115 groups,Injector electrical response or driver calibration did not behave as expected; architecture-dependent.
P0300,Random/multiple-cylinder misfire,Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/diesel-misfire-codes/,Core diesel injection DTC,submitted 115 groups,"Multiple-cylinder misfire can arise from fueling, electrical, mechanical or airflow conditions."
P0301,"Cylinder misfires, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/diesel-misfire-codes/,Core diesel injection DTC,submitted 115 groups,"Cylinder misfire indicates a combustion/contribution problem, not exclusively a fuel injector fault."
P0302,"Cylinder misfires, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/diesel-misfire-codes/,Core diesel injection DTC,submitted 115 groups,"Cylinder misfire indicates a combustion/contribution problem, not exclusively a fuel injector fault."
P0303,"Cylinder misfires, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/diesel-misfire-codes/,Core diesel injection DTC,submitted 115 groups,"Cylinder misfire indicates a combustion/contribution problem, not exclusively a fuel injector fault."
P0304,"Cylinder misfires, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/diesel-misfire-codes/,Core diesel injection DTC,submitted 115 groups,"Cylinder misfire indicates a combustion/contribution problem, not exclusively a fuel injector fault."
P0305,"Cylinder misfires, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/diesel-misfire-codes/,Core diesel injection DTC,submitted 115 groups,"Cylinder misfire indicates a combustion/contribution problem, not exclusively a fuel injector fault."
P0306,"Cylinder misfires, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/diesel-misfire-codes/,Core diesel injection DTC,submitted 115 groups,"Cylinder misfire indicates a combustion/contribution problem, not exclusively a fuel injector fault."
P0307,"Cylinder misfires, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/diesel-misfire-codes/,Core diesel injection DTC,submitted 115 groups,"Cylinder misfire indicates a combustion/contribution problem, not exclusively a fuel injector fault."
P0308,"Cylinder misfires, cylinders 1–8",Injector performance and balance,/diesel-dtc/injector-performance/,/diesel-dtc/diesel-misfire-codes/,Core diesel injection DTC,submitted 115 groups,"Cylinder misfire indicates a combustion/contribution problem, not exclusively a fuel injector fault."
P0335,Crankshaft position sensor circuit,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0340,Camshaft position sensor circuit,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0380,Glow plug/heater circuit,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0401,Exhaust gas recirculation flow insufficient,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0611,Fuel injector control module performance,Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-driver-modules/,Core diesel injection DTC,submitted 115 groups,"Module performance detected; verify voltage, grounds, communications and circuit loads."
P0627,Fuel pump A control circuit open,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-electrical/,Core diesel injection DTC,submitted 115 groups,Open command/power circuit fault; exact pump A assignment is model-specific.
P0628,Fuel pump A control circuit low,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-electrical/,Core diesel injection DTC,submitted 115 groups,Low control circuit state requires electrical diagnosis.
P0629,Fuel pump A control circuit high,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-electrical/,Core diesel injection DTC,submitted 115 groups,High control circuit state requires electrical diagnosis.
P062A,Fuel pump A control circuit range/performance,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-electrical/,Core diesel injection DTC,submitted 115 groups,Pump control response falls outside monitored performance expectations.
P062B,Internal control module fuel injector control performance,Additional fuel control codes,/diesel-dtc/additional-fuel-control-codes/,/diesel-dtc/additional-fuel-control-codes/,Additional injection-related code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P062D,"Fuel injector driver performance, banks 1–2",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-driver-modules/,Core diesel injection DTC,submitted 115 groups,"Bank-level driver concern; rule out power, wiring and connected loads before module replacement."
P062E,"Fuel injector driver performance, banks 1–2",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-driver-modules/,Core diesel injection DTC,submitted 115 groups,"Bank-level driver concern; rule out power, wiring and connected loads before module replacement."
P064A,Fuel pump control module fault,Supply and lift pump,/diesel-dtc/lift-pump-fuel-supply/,/diesel-dtc/fuel-pump-module/,Core diesel injection DTC,submitted 115 groups,"Pump controller malfunction indication; verify feed, ground, communications and load."
P0671,Cylinder 1 glow plug circuit,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0672,Cylinder 2 glow plug circuit,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0673,Cylinder 3 glow plug circuit,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0674,Cylinder 4 glow plug circuit,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0675,Cylinder 5 glow plug circuit,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0676,Cylinder 6 glow plug circuit,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0677,Cylinder 7 glow plug circuit,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P0678,Cylinder 8 glow plug circuit,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P1093,Duramax fuel rail pressure too low during power enrichment,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/p1093-duramax/,Core diesel injection DTC,submitted 115 groups,Manufacturer-specific Duramax use; verify engine generation and loaded demand data.
P1211,7.3L Power Stroke ICP actual versus desired,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/p1211-p1212/,Core diesel injection DTC,submitted 115 groups,Confirmed on applicable 7.3L Ford HEUI applications; desired and measured oil-actuation pressure differ.
P1212,Power Stroke ICP-related code—definition varies,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/p1211-p1212/,Core diesel injection DTC,submitted 115 groups,Verify year and service manual; do not universally label it cranking pressure not achieved.
P1280,ICP sensor circuit out of range low (7.3L Ford),7.3L Power Stroke ICP / IPR,/diesel-dtc/7-3-heui-icp-circuits/,/diesel-dtc/7-3-heui-icp-circuits/,Ford 7.3L application-specific code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P1281,ICP sensor circuit out of range high (7.3L Ford),7.3L Power Stroke ICP / IPR,/diesel-dtc/7-3-heui-icp-circuits/,/diesel-dtc/7-3-heui-icp-circuits/,Ford 7.3L application-specific code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P1283,IPR circuit fault (7.3L Ford),7.3L Power Stroke ICP / IPR,/diesel-dtc/7-3-heui-icp-circuits/,/diesel-dtc/7-3-heui-icp-circuits/,Ford 7.3L application-specific code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P1316,Injector circuit / IDM codes detected (applicable 7.3L Power Stroke),Power Stroke FICM and IDM,/diesel-dtc/ficm-voltage-communication/,/diesel-dtc/power-stroke-injector-driver/,Ford application-specific electrical code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P1378,FICM supply voltage circuit low (6.0L Ford),Power Stroke FICM and IDM,/diesel-dtc/ficm-voltage-communication/,/diesel-dtc/ficm-voltage-communication/,Ford application-specific electrical code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P1379,FICM supply voltage circuit high (6.0L Ford),Power Stroke FICM and IDM,/diesel-dtc/ficm-voltage-communication/,/diesel-dtc/ficm-voltage-communication/,Ford application-specific electrical code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2002,Diesel particulate filter efficiency below threshold,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2146,"Injector group supply circuit open, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,A shared supply-group issue may affect more than one cylinder.
P2147,"Injector group supply circuit low, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,Identify group membership and driver architecture in the OEM schematic.
P2148,"Injector group supply circuit high, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,A shared high-state fault may generate multiple injector symptoms.
P2149,"Injector group supply circuit open, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,A shared supply-group issue may affect more than one cylinder.
P2150,"Injector group supply circuit low, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,Identify group membership and driver architecture in the OEM schematic.
P2151,"Injector group supply circuit high, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,A shared high-state fault may generate multiple injector symptoms.
P2152,"Injector group supply circuit open, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,A shared supply-group issue may affect more than one cylinder.
P2153,"Injector group supply circuit low, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,Identify group membership and driver architecture in the OEM schematic.
P2154,"Injector group supply circuit high, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,A shared high-state fault may generate multiple injector symptoms.
P2155,"Injector group supply circuit open, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,A shared supply-group issue may affect more than one cylinder.
P2156,"Injector group supply circuit low, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,Identify group membership and driver architecture in the OEM schematic.
P2157,"Injector group supply circuit high, groups A–D",Injector electrical circuits,/diesel-dtc/injector-electrical-faults/,/diesel-dtc/injector-group-supply/,Core diesel injection DTC,submitted 115 groups,A shared high-state fault may generate multiple injector symptoms.
P2264,Water-in-fuel sensor circuit,Fuel quality and shutoff,/diesel-dtc/fuel-quality-shutoff/,/diesel-dtc/water-in-fuel-sensor/,Fuel-quality supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2265,Water-in-fuel sensor range/performance,Fuel quality and shutoff,/diesel-dtc/fuel-quality-shutoff/,/diesel-dtc/water-in-fuel-sensor/,Fuel-quality supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2266,Water-in-fuel sensor circuit low,Fuel quality and shutoff,/diesel-dtc/fuel-quality-shutoff/,/diesel-dtc/water-in-fuel-sensor/,Fuel-quality supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2267,Water-in-fuel sensor circuit high,Fuel quality and shutoff,/diesel-dtc/fuel-quality-shutoff/,/diesel-dtc/water-in-fuel-sensor/,Fuel-quality supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2268,Water-in-fuel sensor intermittent/erratic,Fuel quality and shutoff,/diesel-dtc/fuel-quality-shutoff/,/diesel-dtc/water-in-fuel-sensor/,Fuel-quality supporting sensor code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2269,Water detected in fuel,Fuel quality and shutoff,/diesel-dtc/fuel-quality-shutoff/,/diesel-dtc/p2269/,Core diesel injection DTC,submitted 115 groups,Water indication requires prompt OEM-guided fuel and sensor inspection.
P2283,Injector control pressure sensor circuit fault,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/icp-sensor-regulator/,Core diesel injection DTC,submitted 115 groups,Sensor-circuit issue on supported injection control systems.
P2284,Injector control pressure sensor range/performance,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/icp-sensor-regulator/,Core diesel injection DTC,submitted 115 groups,Sensor plausibility differs from a confirmed mechanical pressure fault.
P2285,Injector control pressure sensor circuit low,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/icp-sensor-regulator/,Core diesel injection DTC,submitted 115 groups,Low sensor-circuit voltage/input.
P2286,Injector control pressure sensor circuit high,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/icp-sensor-regulator/,Core diesel injection DTC,submitted 115 groups,High sensor-circuit voltage/input.
P2287,Injector control pressure sensor intermittent,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/icp-sensor-regulator/,Core diesel injection DTC,submitted 115 groups,Erratic pressure sensing or circuit behavior.
P2288,Injector control pressure too high,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/icp-sensor-regulator/,Core diesel injection DTC,submitted 115 groups,Excess pressure relative to the actuation strategy where equipped.
P2289,Injector control pressure too high with engine off,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/icp-sensor-regulator/,Core diesel injection DTC,submitted 115 groups,Abnormal pressure reading with the engine off; verify whether sensor feedback is credible.
P228A,Fuel pressure regulator 1 forced engine shutdown,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/closed-loop-pressure-control/,Core diesel injection DTC,submitted 115 groups,Protective shutdown fault; identify why regulation became unacceptable.
P228C,Fuel pressure regulator 1 exceeded control limits—pressure low,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/closed-loop-pressure-control/,Core diesel injection DTC,submitted 115 groups,Pressure control reached its available correction; evaluate supply and leakage before replacement.
P228D,Fuel pressure regulator 1 exceeded control limits—pressure high,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/closed-loop-pressure-control/,Core diesel injection DTC,submitted 115 groups,"Pressure high-limit behavior can involve control, feedback, or metering issues."
P228E,Fuel pressure regulator 1 learning limits too low,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/closed-loop-pressure-control/,Core diesel injection DTC,submitted 115 groups,Adaptive control low limit; context matters more than regulator name.
P228F,Fuel pressure regulator 1 learning limits too high,Fuel rail pressure,/diesel-dtc/fuel-rail-pressure/,/diesel-dtc/closed-loop-pressure-control/,Core diesel injection DTC,submitted 115 groups,Adaptive control high limit; check pressure strategy and related codes.
P2290,Injector control pressure too low,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/icp-sensor-regulator/,Core diesel injection DTC,submitted 115 groups,Pressure label requires checking whether the application uses HEUI oil actuation or fuel rail pressure.
P2291,Injector control pressure too low during cranking,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/p2291/,Core diesel injection DTC,submitted 115 groups,On modern Ford common-rail systems this may monitor fuel rail pressure; HEUI interpretations differ.
P2292,Injector control pressure erratic,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/icp-sensor-regulator/,Core diesel injection DTC,submitted 115 groups,"Unstable pressure or pressure feedback, application dependent."
P2293,Fuel pressure regulator 2 performance,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-regulator-2/,Core diesel injection DTC,submitted 115 groups,Regulator 2 identification and control architecture are vehicle-specific.
P2294,Fuel pressure regulator 2 control circuit open,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-regulator-2/,Core diesel injection DTC,submitted 115 groups,Open control path for regulator 2.
P2295,Fuel pressure regulator 2 control circuit low,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-regulator-2/,Core diesel injection DTC,submitted 115 groups,Low circuit state for regulator 2.
P2296,Fuel pressure regulator 2 control circuit high,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-regulator-2/,Core diesel injection DTC,submitted 115 groups,High circuit state for regulator 2.
P229A,"Fuel pressure regulator 2 control limit, pressure too low","Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-regulator-2/,Core diesel injection DTC,submitted 115 groups,Regulator 2 corrective range exceeded toward low pressure.
P229B,"Fuel pressure regulator 2 control limit, pressure too high","Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-regulator-2/,Core diesel injection DTC,submitted 115 groups,Regulator 2 corrective range exceeded toward high pressure.
P229C,Fuel pressure regulator 2 learning limit too low,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-regulator-2/,Core diesel injection DTC,submitted 115 groups,Learned low limit on regulator 2 strategy.
P229D,Fuel pressure regulator 2 learning limit too high,"Regulators, valves and leak detection",/diesel-dtc/fuel-pressure-regulators/,/diesel-dtc/fuel-pressure-regulator-2/,Core diesel injection DTC,submitted 115 groups,Learned high limit on regulator 2 strategy.
P2463,Diesel particulate filter soot accumulation,Related faults that mimic injection problems,/diesel-dtc/diagnostic-lookalikes/,/diesel-dtc/diagnostic-lookalikes/,Differential diagnosis; not direct injection proof,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2623,Injector control pressure regulator circuit fault,HEUI and injector control pressure,/diesel-dtc/power-stroke-injector-control-pressure/,/diesel-dtc/icp-sensor-regulator/,Core diesel injection DTC,submitted 115 groups,Control-circuit interpretation depends on HEUI-era hardware and OEM implementation.
P2672,Injection pump timing offset,Pump timing and learned calibration,/diesel-dtc/pump-timing-offset-calibration/,/diesel-dtc/pump-timing-offset-calibration/,Injection pump timing/calibration,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2673,Injection pump timing calibration not learned,Pump timing and learned calibration,/diesel-dtc/pump-timing-offset-calibration/,/diesel-dtc/pump-timing-offset-calibration/,Injection pump timing/calibration,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2674,Injection pump fuel calibration not learned,Pump timing and learned calibration,/diesel-dtc/pump-timing-offset-calibration/,/diesel-dtc/pump-timing-offset-calibration/,Injection pump timing/calibration,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P268C,Cylinder 1 fuel injector data/coding incompatibility,Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-coding/,Injector coding where supported,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P268D,Cylinder 2 fuel injector data/coding incompatibility,Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-coding/,Injector coding where supported,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P268E,Cylinder 3 fuel injector data/coding incompatibility,Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-coding/,Injector coding where supported,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P268F,Cylinder 4 fuel injector data/coding incompatibility,Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-coding/,Injector coding where supported,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2690,Cylinder 5 fuel injector data/coding incompatibility,Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-coding/,Injector coding where supported,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2691,Cylinder 6 fuel injector data/coding incompatibility,Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-coding/,Injector coding where supported,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2692,Cylinder 7 fuel injector data/coding incompatibility,Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-coding/,Injector coding where supported,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
P2693,Cylinder 8 fuel injector data/coding incompatibility,Timing and calibration,/diesel-dtc/injection-timing-calibration/,/diesel-dtc/injector-coding/,Injector coding where supported,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."
U0105,Lost communication with fuel injector control module (where applicable),Power Stroke FICM and IDM,/diesel-dtc/ficm-voltage-communication/,/diesel-dtc/ficm-voltage-communication/,Ford application-specific electrical code,"curated supplemental code, OEM application review required","Validate engine support, model-year code definition and OEM service information."