Cylinder 5 Injection Pulse Offset Not Learned
The ECM has not yet learned the per-cylinder injection pulse offset for cylinder 5. Combustion equalisation between cylinders cannot be applied until adaptation completes.
Affected components
- Fuel injector cyl 5
- Ecm
Common causes
- High likelihood: Adaptation lost after battery disconnect or ECM reset
- Medium likelihood: Injector replaced without learn procedure
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.