P0259Injection Pump Fuel Metering Control B High (Cam/Rotor/Injector)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- Fuel metering actuator B is a second electrically controlled metering valve on a diesel injection pump; A has the codes P0251–P0255. P0259 means its circuit reads high or draws too much current – a short to voltage or a shorted turn. Saab's 3.0 V6 diesel, whose pump has two metering valves, uses it for an internal short in one of the valves lasting over 2.1 s: limp mode with limited pedal response, injection quantity and rail pressure (60 MPa), and the warning light if it recurs on the next trip. GM and Ford use other codes for this part (P0090–P0092, P0001–P0004).
- What you may notice
- Check engine light on
- Limp mode with limited power and speed
- Hard starting, engine may stall
- Likely causes
- LikelyMetering valve B shorted internally
- PossibleControl wire to the valve shorted to voltage, chafing
- PossibleConnector at the valve corroded or wet
- 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
- Hard · Usually a job for a workshop.Typical cost: €150 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.