P0251Injection Pump Fuel Metering Control A Malfunction (Cam/Rotor/Injector)
Generic (OBD-II) interpretation in the TuningBot DTC database.
P · PowertrainFuelOBD2
What P0251 means
P0251
Injection Pump Fuel Metering Control A Malfunction (Cam/Rotor/Injector)
Generic · fuel
Data confidence90%
The control module detected a fault associated with the Injection Pump Fuel Metering Control A Malfunction (Cam/Rotor/Injector) circuit or function; the stored code identifies the affected component rather than a single failure mode.
Symptoms
MIL illuminated
Possible rough running or misfire
Possible increased fuel consumption
Possible causes
Wiring
injection pump
ECM
Recommended checks
Read fuel trim / mixture adaptation values
Check injector circuits and compare cylinder balance
Powertrain: engine, transmission and driveline systems.
0
Generic SAE-standard code: same meaning on every make.
251
Specific fault index within the subsystem.
Frequently asked questions about P0251
What does P0251 mean?
Injection Pump Fuel Metering Control A Malfunction (Cam/Rotor/Injector). The control module detected a fault associated with the Injection Pump Fuel Metering Control A Malfunction (Cam/Rotor/Injector) circuit or function; the stored code identifies the affected component rather than a single failure mode.
Is P0251 generic or manufacturer-specific?
P0251 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P0251 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.