P2290Injector Control Pressure Too Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2290 belongs to the injector control pressure (ICP) family of hydraulically actuated unit injector (HEUI) diesels such as the Navistar-built Ford 6.0 L Power Stroke, where pressurised engine oil fires the injectors. Ford's 2003 and 2004 summaries run the check every 8 ms with the engine running and set it once actual ICP stays more than 3.0 MPa below the PCM's command for longer than 7 s; Ford's 2014 PCM code table marks it as a MIL code. Typical culprits are an injection pressure regulator that no longer seals, leaking high-pressure oil fittings or O-rings, a worn high-pressure oil pump, or low or aerated oil. Expect hard starting, low power and rough running. P2291 is the cranking variant, P2288 the overpressure case.
- What you may notice
- Hard starting, especially when hot
- Lack of power and rough running
- Check engine light
- Likely causes
- LikelyInjection pressure regulator (IPR) contaminated or not sealing
- LikelyLeaking high-pressure oil rail fittings, stand pipes or O-rings
- PossibleWorn high-pressure oil pump
- RareLow, wrong or aerated engine oil
- 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 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.