What does code P0256 mean?
General fault detected in fuel metering control circuit B
OBD-II Code
P0256 — Injection Pump Fuel Metering Control B Malfunction Cam Rotor Injector
General fault detected in fuel metering control circuit B
Common symptoms
- Power loss
- black smoke
Possible causes
- Faulty injection pump
- damaged sensor
- broken harness
Initial recommendation
Inspect injection pump, sensors and wiring continuity.
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
Use the app to combine code P0256 with your vehicle's actual symptoms for more complete diagnostic guidance.
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