P2288 code meaning
Injector Control Pressure Too High
Powertrain system Generic code P22xx codes Check engine light
What P2288 means
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.
P2288 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2288
- Reduced power with fuel limit active
- Loud injection noise or knocking
- MIL on
Common causes of P2288
- Most 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
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Injection pressure regulatorHigh pressure oil pump
What each part of P2288 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 2 | Area: fuel and air metering (injector circuit). |
| 88 | The exact fault in that area. |
What to do next
- Note P2288 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2288
What does P2288 mean?
P2288 means "Injector Control Pressure Too High". P2288 reports that the injector control pressure itself, not just its reading, has climbed above the allowed maximum while the engine runs. It is a generic code, so it means the same on every make.
Is it safe to drive with P2288?
Drive gently and only to a workshop. With P2288 the car can go into limp mode (reduced power) to protect itself.
Will P2288 fail an emissions test?
Yes, it can. P2288 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2288 to fix?
Difficulty: hard. A typical repair takes 1 to 5 hours of work. This is a job for a workshop.
Will P2288 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.