P0254
PowertrainFuel Injectorhigh severityInjection Pump Fuel Metering Control B High (Cam/Rotor/Injector)
What P0254 Means
The PCM detected a high signal in the diesel injection pump fuel metering control 'B' circuit. This can cause fueling problems and drivability issues.
Symptoms
- Rough idle
- Reduced power
- Excessive smoke
Common Causes
- Short to voltage in circuit
- Faulty metering control valve
- Corroded or damaged wiring
- Injection pump fault
Diagnostic Steps
- Retrieve stored codes
- Check circuit for short to power
- Inspect metering valve and connectors
- Test injection pump function
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