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Find codes by symptomChoose what you notice to search matching code guides.

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.

Fuel System Check soon Clear all

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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 25–48 of 975

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P00C8Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit/OpenCheck soonFuel System30–120 minutes for initial diagnosisP00C8 relates to fuel pressure regulator a solenoid supply voltage control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P00C9Fuel Pressure Regulator A Solenoid Supply Voltage Control Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP00C9 relates to fuel pressure regulator a solenoid supply voltage control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P00CAFuel Pressure Regulator A Solenoid Supply Voltage Control Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP00CA relates to fuel pressure regulator a solenoid supply voltage control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P00CBFuel Volume Regulator Solenoid Supply Voltage Control Circuit/OpenCheck soonFuel System30–120 minutes for initial diagnosisP00CB relates to fuel volume regulator solenoid supply voltage control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P00CCFuel Volume Regulator Solenoid Supply Voltage Control Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP00CC relates to fuel volume regulator solenoid supply voltage control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P00CDFuel Volume Regulator Solenoid Supply Voltage Control Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP00CD relates to fuel volume regulator solenoid supply voltage control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P00E5Intake Air Temperature/Fuel Temperature CorrelationCheck soonFuel System30–120 minutes for initial diagnosisP00E5 relates to intake air temperature/fuel temperature correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P0125Insufficient Coolant Temperature for Closed Loop Fuel ControlCheck soonFuel System30–120 minutes for initial diagnosisP0125 relates to insufficient coolant temperature for closed loop fuel control. Check the fault conditions and vehicle-specific procedure before replacing parts.P0148Fuel Delivery ErrorCheck soonFuel System30–120 minutes for initial diagnosisP0148 relates to fuel delivery error. Check the fault conditions and vehicle-specific procedure before replacing parts.P0149Fuel Timing ErrorCheck soonFuel System30–120 minutes for initial diagnosisP0149 relates to fuel timing error. Check the fault conditions and vehicle-specific procedure before replacing parts.P015EExcessive Time to Enter Closed Loop Fuel Timing ControlCheck soonFuel System30–120 minutes for initial diagnosisP015E relates to excessive time to enter closed loop fuel timing control. Check the fault conditions and vehicle-specific procedure before replacing parts.P0168Fuel Temperature Too HighCheck soonFuel System30–120 minutes for initial diagnosisP0168 relates to fuel temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0169Incorrect Fuel CompositionCheck soonFuel System30–120 minutes for initial diagnosisP0169 relates to incorrect fuel composition. Check the fault conditions and vehicle-specific procedure before replacing parts.P016AExcessive Time To Enter Closed Loop Air/Fuel Ratio ControlCheck soonFuel System30–120 minutes for initial diagnosisP016A relates to excessive time to enter closed loop air/fuel ratio control. Check the fault conditions and vehicle-specific procedure before replacing parts.P016BClosed Loop Air/Fuel Ratio Control At Limit - System Too RichCheck soonFuel System30–120 minutes for initial diagnosisP016B relates to closed loop air/fuel ratio control at limit - system too rich. Check the fault conditions and vehicle-specific procedure before replacing parts.P016CClosed Loop Air/Fuel Ratio Control At Limit - System Too LeanCheck soonFuel System30–120 minutes for initial diagnosisP016C relates to closed loop air/fuel ratio control at limit - system too lean. Check the fault conditions and vehicle-specific procedure before replacing parts.P016DExcessive Time To Enter Closed Loop Fuel Pressure ControlCheck soonFuel System30–120 minutes for initial diagnosisP016D relates to excessive time to enter closed loop fuel pressure control. Check the fault conditions and vehicle-specific procedure before replacing parts.P016EClosed Loop Fuel Pressure Control At Limit - Pressure Too HighCheck soonFuel System30–120 minutes for initial diagnosisP016E relates to closed loop fuel pressure control at limit - pressure too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P016FClosed Loop Fuel Pressure Control At Limit - Pressure Too LowCheck soonFuel System30–120 minutes for initial diagnosisP016F relates to closed loop fuel pressure control at limit - pressure too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0170Fuel Trim Bank 1Check soonFuel System30–120 minutes for initial diagnosisP0170 relates to fuel trim bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P0173Fuel Trim Bank 2Check soonFuel System30–120 minutes for initial diagnosisP0173 relates to fuel trim bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P0176Fuel Composition Sensor CircuitCheck soonFuel System30–120 minutes for initial diagnosisP0176 relates to fuel composition sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0177Fuel Composition Sensor Circuit Range/PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP0177 relates to fuel composition sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0178Fuel Composition Sensor Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP0178 relates to fuel composition sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.