P2290 code meaning
Injector Control Pressure Too Low
Powertrain system Generic code P22xx codes Check engine light
What P2290 means
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.
P2290 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor1 to 8 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2290
- Hard starting, especially when hot
- Lack of power and rough running
- Check engine light
Common causes of P2290
- Most likelyInjection pressure regulator (IPR) contaminated or not sealing
- Most likelyLeaking high-pressure oil rail fittings, stand pipes or O-rings
- PossibleWorn high-pressure oil pump
- Less likelyLow, wrong or aerated engine oil
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 P2290 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). |
| 90 | The exact fault in that area. |
What to do next
- Note P2290 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 P2290
What does P2290 mean?
P2290 means "Injector Control Pressure Too Low". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with P2290?
Drive gently and only to a workshop. With P2290 the car can go into limp mode (reduced power) to protect itself.
Will P2290 fail an emissions test?
Yes, it can. P2290 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 P2290 to fix?
Difficulty: hard. A typical repair takes 1 to 8 hours of work. This is a job for a workshop.
Will P2290 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.