For 1990-2009 cars

#### Dieseling, Run-On

Checks | Action
--- | ---
DEFINITION: Engine continues to run after key is turned OFF, but runs very rough. If engine runs smooth, check the ignition switch and adjustment.
Preliminary Checks |

• | Refer to Diagnostic System Check - Engine Controls .

• | Refer to Symptoms - Engine Controls .

• | Search for service bulletins.

Fuel System | Check for leaking fuel injectors. Refer to Fuel Injector Solenoid Coil Test .
Additional Checks | Check the evaporative emission (EVAP) system for purging of fuel vapors into the intake manifold.