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Rough idle or shakingVibration while stopped Hard to startLong cranking or no-start Engine stallsCuts out at idle or on the road Hesitates or loses powerSlow response when accelerating Battery light is onCharging system warning Harsh gear changesDelayed or rough shifting

A symptom can have several causes. Treat matching codes as clues and follow the diagnostic checks in each guide.

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Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

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All severities9253 Low priority305 Check soon8256 Urgent621

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All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 193–216 of 975

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P029ACylinder 1 - Fuel Trim at Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP029A relates to cylinder 1 - fuel trim at max limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P029BCylinder 1 - Fuel Trim at Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP029B relates to cylinder 1 - fuel trim at min limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P029CCylinder 1 - Injector RestrictedCheck soonFuel System30–120 minutes for initial diagnosisP029C relates to cylinder 1 - injector restricted. Check the fault conditions and vehicle-specific procedure before replacing parts.P029DCylinder 1 - Injector LeakingCheck soonFuel System30–120 minutes for initial diagnosisP029D relates to cylinder 1 - injector leaking. Check the fault conditions and vehicle-specific procedure before replacing parts.P029ECylinder 2 - Fuel Trim at Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP029E relates to cylinder 2 - fuel trim at max limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P029FCylinder 2 - Fuel Trim at Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP029F relates to cylinder 2 - fuel trim at min limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P02A0Cylinder 2 - Injector RestrictedCheck soonFuel System30–120 minutes for initial diagnosisP02A0 relates to cylinder 2 - injector restricted. Check the fault conditions and vehicle-specific procedure before replacing parts.P02A1Cylinder 2 - Injector LeakingCheck soonFuel System30–120 minutes for initial diagnosisP02A1 relates to cylinder 2 - injector leaking. Check the fault conditions and vehicle-specific procedure before replacing parts.P02A2Cylinder 3 - Fuel Trim at Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP02A2 relates to cylinder 3 - fuel trim at max limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P02A3Cylinder 3 - Fuel Trim at Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP02A3 relates to cylinder 3 - fuel trim at min limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P02A4Cylinder 3 - Injector RestrictedCheck soonFuel System30–120 minutes for initial diagnosisP02A4 relates to cylinder 3 - injector restricted. Check the fault conditions and vehicle-specific procedure before replacing parts.P02A5Cylinder 3 - Injector LeakingCheck soonFuel System30–120 minutes for initial diagnosisP02A5 relates to cylinder 3 - injector leaking. Check the fault conditions and vehicle-specific procedure before replacing parts.P02A6Cylinder 4 - Fuel Trim at Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP02A6 relates to cylinder 4 - fuel trim at max limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P02A7Cylinder 4 - Fuel Trim at Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP02A7 relates to cylinder 4 - fuel trim at min limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P02A8Cylinder 4 - Injector RestrictedCheck soonFuel System30–120 minutes for initial diagnosisP02A8 relates to cylinder 4 - injector restricted. Check the fault conditions and vehicle-specific procedure before replacing parts.P02A9Cylinder 4 - Injector LeakingCheck soonFuel System30–120 minutes for initial diagnosisP02A9 relates to cylinder 4 - injector leaking. Check the fault conditions and vehicle-specific procedure before replacing parts.P02AACylinder 5 - Fuel Trim at Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP02AA relates to cylinder 5 - fuel trim at max limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P02ABCylinder 5 - Fuel Trim at Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP02AB relates to cylinder 5 - fuel trim at min limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P02ACCylinder 5 - Injector RestrictedCheck soonFuel System30–120 minutes for initial diagnosisP02AC relates to cylinder 5 - injector restricted. Check the fault conditions and vehicle-specific procedure before replacing parts.P02ADCylinder 5 - Injector LeakingCheck soonFuel System30–120 minutes for initial diagnosisP02AD relates to cylinder 5 - injector leaking. Check the fault conditions and vehicle-specific procedure before replacing parts.P02AECylinder 6 - Fuel Trim at Max LimitCheck soonFuel System30–120 minutes for initial diagnosisP02AE relates to cylinder 6 - fuel trim at max limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P02AFCylinder 6 - Fuel Trim at Min LimitCheck soonFuel System30–120 minutes for initial diagnosisP02AF relates to cylinder 6 - fuel trim at min limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P02B0Cylinder 6 - Injector RestrictedCheck soonFuel System30–120 minutes for initial diagnosisP02B0 relates to cylinder 6 - injector restricted. Check the fault conditions and vehicle-specific procedure before replacing parts.P02B1Cylinder 6 - Injector LeakingCheck soonFuel System30–120 minutes for initial diagnosisP02B1 relates to cylinder 6 - injector leaking. Check the fault conditions and vehicle-specific procedure before replacing parts.