For 1990-2009 cars

Checks | Action
--- | ---
DEFINITION: The engine continues to run, very roughly and unevenly, after turning Off the ignition. Check for a faulty ignition switch or ignition switch adjustment if the engine continues to run smoothly.
Preliminary Check |

• | Refer to Diagnostic System Check - Engine Controls .

• | Refer to Symptoms - Engine Controls .

Fuel System Checks |

• | Check the evaporative emission (EVAP) control system. Refer to Evaporative Emission Control System Diagnosis .

• | Check for leaking fuel injectors. Refer to Fuel Injector Balance Test with Special Tool .