Dieseling, Run-On. Pontiac Sunfire 2004

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 2004 🢒 Sunfire 🢒 Engine 🢒 Engine Controls - 2.2L (L61) 🢒 Dieseling, Run-On

Inspections

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 Inspections

•	Refer to Important Preliminary Inspections Before Starting in Symptoms - Engine Controls .

•	Search for bulletins.

•	Verify that the powertrain control module (PCM) grounds are clean, tight, and in the proper locations. Refer to Power and Grounding Component Views in Wiring Systems and Engine Controls Schematics .

Fuel System

•	Inspect the fuel pressure regulator hose for the presence of fuel. Replace the fuel pressure regulator if fuel is found in the hose. Refer to Fuel Pressure Regulator Replacement .

•	Test the fuel injectors. Refer to Fuel Injector Solenoid Coil Test .