OBD-II code · Powertrain (generic)
P0256 Injection Pump Fuel Metering Control B (Cam/Rotor/Injector)
Injection Pump Fuel Metering Control B (Cam/Rotor/Injector): the control module has detected this fault condition. This affects fueling of the associated cylinders.
Is it safe to drive with P0256?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyMetering actuator B failed
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–10 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Metering Actuator B
Related codes
- P0251Injection Pump Fuel Metering Control A (Cam/Rotor/Injector)
- P2A12Injection Pump Fuel Metering Control C (Cam/Rotor/Injector)
- P2A16Injection Pump Fuel Metering Control D (Cam/Rotor/Injector)
- P2A1AInjection Pump Fuel Metering Control E (Cam/Rotor/Injector)
- P2A1EInjection Pump Fuel Metering Control F (Cam/Rotor/Injector)
- P0253Injection Pump Fuel Metering Control A Low (Cam/Rotor/Injector)
- P0254Injection Pump Fuel Metering Control A High (Cam/Rotor/Injector)
- P0255Injection Pump Fuel Metering Control A Intermittent (Cam/Rotor/Injector)
- P0257Injection Pump Fuel Metering Control B Range/Performance (Cam/Rotor/Injector)
- P0258Injection Pump Fuel Metering Control B Low (Cam/Rotor/Injector)
- P0259Injection Pump Fuel Metering Control B High (Cam/Rotor/Injector)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.