P0254Injection Pump Fuel Metering Control A High (Cam/Rotor/Injector)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- 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.
- What you may notice
- Check engine light on
- Engine stalls or will not start (Saab 3.0 diesel)
- Limp mode, loss of power
- Likely causes
- LikelyControl wire shorted to voltage
- PossibleMetering valve with shorted turns (overcurrent)
- RareConnector corrosion with leakage current
- RareDriver stage in the engine module faulty
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.