P0254 code meaning
Injection Pump Fuel Metering Control A High (Cam/Rotor/Injector)
Powertrain system Generic code P02xx codes Check engine light
What P0254 means
These codes cover the electrically controlled fuel metering actuator on a diesel injection pump – on common rail usually an inlet metering valve on the high-pressure pump that sets how much fuel is compressed. P0254 means the actuator A circuit reads high or draws too much current – typically the control wire shorted to voltage. Saab's 2011 9-5 diesel sets it after 1 s with the warning light at once. On Saab's 3.0 V6 diesel a short to voltage of more than 0.31 s stops the engine, because a permanently energised valve can no longer control quantity and pressure. Ford's equivalent P0004 sets above 3.7 A; GM uses P0092.
P0254 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0254
- Check engine light on
- Engine stalls or will not start (Saab 3.0 diesel)
- Limp mode, loss of power
Common causes of P0254
- Most likelyControl wire shorted to voltage
- PossibleMetering valve with shorted turns (overcurrent)
- Less likelyConnector corrosion with leakage current
- Less likelyDriver stage in the engine module faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Fuel metering actuator aHigh pressure fuel pumpActuator wiring
What each part of P0254 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 2 | Area: fuel and air metering (injector circuit). |
| 54 | The exact fault in that area. |
What to do next
- Note P0254 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0254
What does P0254 mean?
P0254 means "Injection Pump Fuel Metering Control A High (Cam/Rotor/Injector)". These codes cover the electrically controlled fuel metering actuator on a diesel injection pump – on common rail usually an inlet metering valve on the high-pressure pump that sets how much fuel is compressed. It is a generic code, so it means the same on every make.
Is it safe to drive with P0254?
Drive gently and only to a workshop. With P0254 the car can go into limp mode (reduced power) to protect itself.
Will P0254 fail an emissions test?
Yes, it can. P0254 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0254 to fix?
Difficulty: medium. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P0254 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.