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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.

Check soon P · Powertrain 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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Diagnostic codes

Showing 217–240 of 6682

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P014EO2 Sensor Slow Response - Rich to Lean Bank 2 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP014E relates to o2 sensor slow response - rich to lean bank 2 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P014FO2 Sensor Slow Response - Lean to Rich Bank 2 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP014F relates to o2 sensor slow response - lean to rich bank 2 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P0159Oxygen Sensor Circuit Slow Response Bank 2 Sensor 2Check soonEmissions System45–120 minutes for initial diagnosisP0159 means Oxygen Sensor Circuit Slow Response Bank 2 Sensor 2. Learn the likely symptoms, causes, safety implications, and a practical diagnostic order.P015AO2 Sensor Delayed Response - Rich to Lean Bank 1 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP015A relates to o2 sensor delayed response - rich to lean bank 1 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P015BO2 Sensor Delayed Response - Lean to Rich Bank 1 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP015B relates to o2 sensor delayed response - lean to rich bank 1 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P015CO2 Sensor Delayed Response - Rich to Lean Bank 2 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP015C relates to o2 sensor delayed response - rich to lean bank 2 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P015DO2 Sensor Delayed Response - Lean to Rich Bank 2 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP015D relates to o2 sensor delayed response - lean to rich bank 2 sensor 1. 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.P015FExcessive Time to Enter Closed Loop Cylinder Balance ControlCheck soonEngine Problems30–120 minutes for initial diagnosisP015F relates to excessive time to enter closed loop cylinder balance 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.P0179Fuel Composition Sensor Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP0179 relates to fuel composition sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P017ACylinder Head Temperature Sensor A CircuitCheck soonEngine Problems30–120 minutes for initial diagnosisP017A relates to cylinder head temperature sensor a circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.