P2625Injector Control Pressure Regulator Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- With P2625 the module sees the injection pressure regulator circuit at too high a level: the switched line is shorted to battery voltage, or the IPR coil draws more current than the driver allows. No manufacturer documents this code publicly; Ford's 6.0 L Power Stroke summaries from 2003 to 2009 fold every IPR driver fault into P2623, and International's HEUI truck engines report through their own codes. The regulator matters because it alone decides how much oil pressure reaches the injectors; Navistar's HEUI design lets that pressure be set independently of engine speed. If the PCM cannot pull the IPR coil, rail pressure stays near minimum, so the engine may not start at all. CARB treats such hydraulic pressure control as part of fuel system monitoring.
- What you may notice
- Long cranking or no-start
- Low power, engine may stall
- Malfunction indicator lamp on
- Likely causes
- LikelyIPR control line shorted to a battery-voltage circuit
- PossibleIPR coil with reduced resistance causing overcurrent
- RareFaulty IPR driver in the PCM
- 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: €100 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.