Dieseling, Run-On. Pontiac Firefly (Canada) 1999

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 1999 🢒 Firefly (Canada) 🢒 Engine 🢒 Engine Controls - 1.3L 🢒 Dieseling, Run-On

Checks

Action

DEFINITION: The engine continues to run roughly and to run unevenly after turning OFF the ignition. Check for a faulty ignition switch or for an ignition switch adjustment if the engine continues to run smoothly.

Preliminary Check

•	Refer to Powertrain On Board Diagnostic (OBD) System Check .

•	Refer to Symptoms .

Fuel System Checks

•	Check the EVAP control system. Refer to Evaporative Emission Control System Diagnosis .

•	Check for leaking fuel injectors. Refer to Sequential Multiport Fuel Injector Balance Test .