Diagnostic library
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9,253 diagnostic guides
Find codes by symptomChoose what you notice to search matching code guides.
Rough idle or shakingVibration while stoppedHard to startLong cranking or no-startEngine stallsCuts out at idle or on the roadHesitates or loses powerSlow response when acceleratingBattery light is onCharging system warningHarsh 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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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.
Diagnostic codes
Showing 793–816 of 1016
P2A50Alternative Fuel Vaporizer A Outlet Temperature Sensor CircuitCheck soonFuel System30–120 minutes for initial diagnosisP2A51Alternative Fuel Vaporizer A Outlet Temperature Sensor Range/PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2A52Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP2A53Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP2A54Alternative Fuel Vaporizer A Outlet Temperature Sensor Circuit Intermittent/ErraticCheck soonFuel System30–120 minutes for initial diagnosisP2A55Alternative Fuel Vaporizer B Outlet Temperature Sensor CircuitCheck soonFuel System30–120 minutes for initial diagnosisP2A56Alternative Fuel Vaporizer B Outlet Temperature Sensor Range/PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2A57Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP2A58Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP2A59Alternative Fuel Vaporizer B Outlet Temperature Sensor Circuit Intermittent/ErraticCheck soonFuel System30–120 minutes for initial diagnosisP2A5AAlternative Fuel Vaporizer C Outlet Temperature Sensor CircuitCheck soonFuel System30–120 minutes for initial diagnosisP2A5BAlternative Fuel Vaporizer C Outlet Temperature Sensor Range/PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2A5CAlternative Fuel Vaporizer C Outlet Temperature Sensor Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP2A5DAlternative Fuel Vaporizer C Outlet Temperature Sensor Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP2A5EAlternative Fuel Vaporizer C Outlet Temperature Sensor Circuit Intermittent/ErraticCheck soonFuel System30–120 minutes for initial diagnosisP2A5FAlternative Fuel Tank B Level Sensor CircuitCheck soonFuel System30–120 minutes for initial diagnosisP2A60Alternative Fuel Tank B Level Sensor Range/PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2A61Alternative Fuel Tank B Level Sensor Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP2A62Alternative Fuel Tank B Level Sensor Circuit HighCheck soonFuel System30–120 minutes for initial diagnosisP2A63Alternative Fuel Tank B Level Sensor Circuit Intermittent/ErraticCheck soonFuel System30–120 minutes for initial diagnosisP2A64Alternative Fuel Tank C Level Sensor CircuitCheck soonFuel System30–120 minutes for initial diagnosisP2A65Alternative Fuel Tank C Level Sensor Range/PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2A66Alternative Fuel Tank C Level Sensor Circuit LowCheck soonFuel System30–120 minutes for initial diagnosisP2A67Alternative Fuel Tank C Level Sensor Circuit HighCheck soonFuel System30–120 minutes for initial diagnosis