What does code P0251 mean?
General fault detected in fuel metering control circuit A on diesel systems
OBD-II Code
P0251 — Injection Pump Fuel Metering Control A Malfunction Cam Rotor Injector
General fault detected in fuel metering control circuit A on diesel systems
Common symptoms
- Loss of power
- excessive smoke
- hard starting
Possible causes
- Faulty injection pump
- CMP sensor failure
- PCM fault
Initial recommendation
Check injection timing, injection pump and related sensors.
Safety notice
This information is for guidance only and does not replace a physical vehicle inspection or diagnosis by a qualified mechanic. If the vehicle has severe power loss, smoke, a fuel odor, overheating, brake or steering problems, or any unsafe behavior, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
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