For 1990-2009 cars

## Dieseling, Run-On Petrol

Checks | Action
--- | ---
DEFINITION: The engine continues to run when the ignition is turned OFF, but usually runs very roughly.
Preliminary Checks | Refer to Important Preliminary Checks in Symptoms - Engine Controls .
Fuel System Checks |

• | Test for correct EVAP Purge system operation.

• | Test the fuel injectors for leakage.

• | Inspect for correct throttle blade adjustment, if applicable.

• | Perform the fuel system diagnostic procedure. Refer to Fuel System Diagnosis .

Additional Checks | If the engine continues to run smoothly when the ignition is turned OFF inspect for the following:

• | Correct ignition switch adjustment

• | A short to voltage in the LPG ECM ignition feed circuit.