P0251
Injection Pump Fuel Metering Control A (Cam/Rotor/Injector)
Injection Pump Fuel Metering Control A (Cam/Rotor/Injector): the control module has detected this fault condition. This affects fueling of the associated cylinders.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Metering actuator failedCommon
Parts involved
- Injection Pump
- Metering Actuator A
P0251 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.