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Please fill the "Code Box" to find engine fault code.

Example: 0120

All Engine Codes

The all list of engine trouble codes.

P0131 Engine Diagnostic Code

On 1999 and later P0131 engines, the instrument cluster has a built-in self-diagnostic mode that can be accessed by pressing and holding the instrument cluster SELECT/RESET button. Insert the ignition key and turn to the RUN position (but don't crank or start engine). Continue to press and hold the SELECT/RESET button (for 5 seconds) until the word TEST is displayed by the odometer. Release the SELECT/RESET button within three seconds after the word TEST is displayed to begin the self-diagnostic mode.

P0131 engine code provides below are generic codes that may not apply to all vehicles. Car manufacturer uses specific P0131 DTC code that are different from the codes shown below. Foreign vehicles may also use DTC codes different from the generic Engine Diagnostic codes.

Sample P0131 Engine

P0131 Diagnostic Trouble Code Meaning And Solution

P 0 1 31
Powertrain Problem SAE - Generic Fuel And Air Metering 31 Engine Fault Code

Starting letter P diagnostic code shows that there are problems in engine, transmission and emissions systems.
If your "Check Engine Light" is on, it means your vehicle has one or more OBD II Trouble Codes so you have to check your engine diagnostic code tool. If your vehicle is an older model with a non-electronic Fuel And Air Metering, you can check the distributor cap to see whether the spark is getting from there to the coil and on to the spark plugs.

Don't forget ! If your P0131 engine code not resolved on and there are trouble codes in your computer, your vehicle will not pass an OBD 2 emissions test. The light must be off and there must be no codes in memory to pass an OBD 2 emissions test. In addition, all of the OBD II self-monitors that check for faults must have run and completed without finding any further problems to pass the test.