Alternative Fuel Delivery Error
The AFCM detects that alternative fuel delivery to the engine deviates from the commanded amount. Pump output, valve actuation, or injector flow does not match expectations.
Affected components
- Alt fuel pump
- Alt fuel injectors
- Afcm
Common causes
- High likelihood: Alt fuel pump output degraded
- Medium likelihood: Alt fuel injectors partially clogged
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
- Reduced-power or limp mode may occur
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.