Possible Causes
WARNING: This page is about a different variant/trim than selected.
- Electrical Cause
- No
- Mechanical Cause
- Yes
- Purpose of the DTC
- Actual ignition timing different to commanded ignition timing during catalyst heating
- The powertrain control module has detected that the actual ignition timing is different to that requested for optimal catalyst heating
- Prioritized List of Possible Causes
- Intake air system leakage
- Intake air system components incorrectly installed, loose or damaged pipework
- Engine crankcase breather system leakage
- Engine crankcase breather system components incorrectly installed
- Engine vacuum system leak
- Brake booster leak
- Engine speed error
- Incorrect accessory loading
- Engine misfire