OBD-II code · Powertrain (generic)
P0257 Injection Pump Fuel Metering Control B Range/Performance (Cam/Rotor/Injector)
Injection Pump Fuel Metering Control B Range/Performance (Cam/Rotor/Injector): the signal is implausible or outside the valid range. This affects fueling of the associated cylinders.
Is it safe to drive with P0257?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyActuator B drifted
- Less likelySensor element aged beyond calibration window
- Less likelySensor mounting loose - signal damping
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
- P0252Injection Pump Fuel Metering Control A Range/Performance (Cam/Rotor/Injector)
- P2A13Injection Pump Fuel Metering Control C Range/Performance (Cam/Rotor/Injector)
- P2A17Injection Pump Fuel Metering Control D Range/Performance (Cam/Rotor/Injector)
- P2A1BInjection Pump Fuel Metering Control E Range/Performance (Cam/Rotor/Injector)
- P2A1FInjection Pump Fuel Metering Control F Range/Performance (Cam/Rotor/Injector)
- P0254Injection Pump Fuel Metering Control A High (Cam/Rotor/Injector)
- P0255Injection Pump Fuel Metering Control A Intermittent (Cam/Rotor/Injector)
- P0256Injection Pump Fuel Metering Control B (Cam/Rotor/Injector)
- P0258Injection Pump Fuel Metering Control B Low (Cam/Rotor/Injector)
- P0259Injection Pump Fuel Metering Control B High (Cam/Rotor/Injector)
- P025AFuel Pump Module A Control Circuit/Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.