DEFINITION: Engine continues to run after key is turned OFF, but runs very rough. If the engine runs smooth, inspect the ignition switch and adjustment.

Preliminary

Fuel System

Test for leaking fuel injectors. Refer to Fuel Injector Balance Test with Special Tool or Fuel Injector Balance Test with Tech 2 .

Additional

Inspect the EVAP system for the purging of fuel vapors into the intake manifold.