Fuel/Engine Controls - Cold Start Misfire/DTC's P0301-4

01 MIL on, cold start misfire (DTCS P0301 - P0304)

24 12 16

2010930/5

February 20, 2012.

Supersedes Technical Service Bulletin Group 24 number 10 - 14 dated April 5, 2010 for reasons listed below.





Affected Vehicles





Condition
^ Sporadically after cold start, engine may run slightly rough for a few seconds. Condition disappears a few seconds after cold start and does not exist with a warm engine.

^ MIL may illuminate.

^ DTCs P0300, P0301, P0302, P0303, and P0304 for misfire may be stored in the DTC memory.

Technical Background
Fuel quality may also affect this condition.

Production Solution
Vehicles are out of production.

Service

1. Follow all instructions in the attached TSB 2011732 00 Software Version Management (SVM), operating instructions.





2. Update the ECM (J623) using the SVM action code as listed in the table above if necessary.





Warranty

Additional Information

All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.

Attachment
































^ TSB 2011732 00 Software Version Management (SVM), operating instructions.