28B-15
UnclassifiedFuel
What This Code Means
Hardware errors in the injectors; Hardware errors in respective ECM power stages; Overcurrent; Command collision; RAM error; Short circuit; Incorrect injector energizing time at low idle; Incorrect pilot injection energizing time; Failure detected; Measured and reference pattern matching; Deviation in injector pilot injection energizing time at low idle
Possible Causes
- •Injector hardware failure
- •ECM power stage failure
- •Electrical short circuit
- •Overcurrent
- •Command collision
- •RAM error
- •Incorrect learned calibration values added to the pilot injection energizing time
- •Hardware errors in the injectors
- •Hardware errors in ECM power stages
- •Short circuit
- •Learned calibration values require monitoring
Suggested Actions
- 1Use pattern detection to identify specific errors
- 2Trigger appropriate substitute reaction
- 3Monitor the learned calibration values
- 4Use pattern detection to identify specific errors via bit mask
- 5Evaluate injector energizing time at low idle using ZFL functionality
- 6Monitor pilot injection learned calibration values
- 7Change pilot injection energizing time by adding learned calibration values
Related Winco Fault Codes
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