Dieseling, Run-On. Pontiac Sunfire 2001

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 2001 🢒 Sunfire 🢒 Engine 🢒 Engine Electrical 🢒 Dieseling, Run-On

Dieseling, Run-On

Checks

Action

DEFINITION: The engine continues to run after the ignition is turned OFF, but runs very rough. If the engine runs smooth, inspect 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

Inspect the fuel injectors. Refer to Fuel Injector Balance Test with Special Tool or Fuel Injector Balance Test with Tech 2 .

Additional Checks

Inspect for a short between B+ and any of the ignition feed circuits. Refer to Power Distribution Schematics in Wiring Systems.