Dieseling, Run-On. Pontiac Firebird 1998

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 1998 🢒 Firebird 🢒 Engine 🢒 Engine Controls - 5.7L 🢒 Dieseling, Run-On

Checks

Action

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

Preliminary Checks

•	Refer to Symptoms , Important Preliminary Checks Before Starting.

•	Search for bulletins.

•	Inspect the PCM grounds for being clean, tight and in the proper locations. Refer to Ground Distribution Schematics in Wiring Systems.

Fuel System

Inspect the injectors for a leaking condition. Refer to Fuel System Diagnosis for procedure.