GM Service Manual Online
For 1990-2009 cars only

Checks

Action

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

Preliminary Checks

    • Refer to the Symptoms .
    • Search for bulletins.

Fuel System

Test the Fuel injectors.

Additional Tests:

Test for short between B+ and any of the ignition feed circuit. Refer to Circuit Testing .