P2288Injector Control Pressure Too 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
- P2288 reports that the injector control pressure itself, not just its reading, has climbed above the allowed maximum while the engine runs. Ford's 6.0L Power Stroke summaries put the limit at 27.5 MPa in the 2003 edition and 29.5 MPa in 2004, sustained for more than 3 s. For comparison, Ford's high-pressure oil pump normally works between about 3 and 25 MPa on that engine. Excessive pressure means the injection pressure regulator fails to release enough oil to drain, because it sticks, its coil is driven wrongly or the control signal is stuck; a sensor reading high but still within circuit limits can also mislead. The PCM limits fuelling to protect the injectors and oil system. P2290 is the too-low case; P2289 the same check with the engine off.
- What you may notice
- Reduced power with fuel limit active
- Loud injection noise or knocking
- MIL on
- Likely causes
- LikelyInjection pressure regulator valve stuck or contaminated
- PossibleFault in the regulator drive circuit holding it at high duty
- PossibleICP sensor reading higher than the actual pressure
- 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 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.