P0251: The injection pump fuel metering control A circuit has a fault in the cam
The injection pump fuel metering control A circuit has a fault in the cam, rotor or injector assembly. Check its connections and wiring.
| Code | P0251 |
|---|---|
| System | Engine and transmission |
| Group | P02xx, Fuel and injectors |
| Type | Generic: it means the same on every make |
How to read and clear P0251 with Final OBD
Plug an OBD2 scanner in under the steering wheel, switch the ignition on and open Final OBD. Under Faults you’ll see P0251 with its description and whether it’s confirmed, pending or permanent.
If the engine stores it over standard OBD, with FREE you read this code with its explanation for nothing and clear it. With PRO you also read the faults of every control unit and clear them in all of them.
Clearing the code only turns the light off: if the cause is still there, it comes back. Clear it once it’s fixed, and not right before an inspection. It’s all in how to read and clear fault codes and in inspections and OBD.
Similar codes
- P024D The intercooler bypass position sensor A gives readings outside the normal range
- P024E The intercooler bypass position sensor A gives a lower signal than normal
- P024F The intercooler bypass position sensor A gives a higher signal than normal
- P0250 The turbocharger wastegate solenoid B gives a higher signal than normal
- P0252 Injection pump fuel metering control A, in the cam, rotor or injector assembly
- P0253 The injection pump fuel metering control A circuit signal is too low
- P0254 The injection pump fuel metering control A circuit signal is too high
- P0255 The injection pump fuel metering control A circuit fails intermittently in the
- P0200 Injector circuit malfunction
- P0201 Injector circuit malfunction, cylinder 1
- P0202 Injector circuit malfunction, cylinder 2
- P0203 Injector circuit malfunction, cylinder 3
What does code P0251 mean?
The injection pump fuel metering control A circuit has a fault in the cam, rotor or injector assembly. Check its connections and wiring.
How do you clear P0251?
With an OBD2 scanner and an app like Final OBD, which clears it for free if it’s stored by the engine control unit. But clearing it only turns the light off: if the cause isn’t fixed, P0251 comes back.
Read it on your car
Final OBD reads and clears engine faults through standard OBD for free, each one explained in plain English. With PRO it also reads the faults of every control unit, each make’s own codes included, and clears them in all of them.
