P2290

Injector Control Pressure Too Low

Q: Is it safe to drive with P2290?

Not reliably. Low injection control pressure can cause hard starting, stalling, or a sudden loss of power, which can leave you stranded. Diagnose it before relying on the vehicle.

Q: Can I just clear P2290?

It returns as soon as pressure drops again. Start with the simplest cause — oil level and condition — then work through the pressure-control components.

Diesel fuel injection Generic OBD-II High

What it means

P2290 means the injection control pressure — the high-pressure engine oil that fires the injectors on hydraulically-actuated diesel systems — is below what the ECM commands. Without enough control pressure the injectors can't deliver fuel properly, so the engine may crank but not start, start hard, misfire, or stall. Begin with engine oil level and condition, then the pressure-control valve and sensor.

High

Can I keep driving? Maybe not — low injection control pressure can cause hard starting, no-start, stalling, or heavy misfire on these diesels; address it before driving far.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Hard starting or no-start
Rough running, misfire, or stalling
Noticeable lack of power
Check-engine light on

Common causes

Most likely first

Low or aerated engine oil (these injectors are hydraulically actuated by engine oil)Likely
Faulty injection pressure regulator (IPR) valveCommon
Leak in the high-pressure oil system (o-rings, fittings, or hoses)Common
Faulty injection control pressure (ICP) sensorLess often
Faulty injector driver module (FICM) or its wiringLess often

How to diagnose & fix

Work through it in order

Check engine oil level and condition first — low or foamy oil starves the system.
Scan and compare actual vs. desired injection control pressure while cranking/running.
Inspect the high-pressure oil system for leaks (o-rings, standpipes, fittings).
Test the IPR valve and the ICP sensor against spec.
Check the injector driver module supply, ground, and wiring, then repair the confirmed fault.

FAQ

Quick answers

Is it safe to drive with P2290?+

Not reliably. Low injection control pressure can cause hard starting, stalling, or a sudden loss of power, which can leave you stranded. Diagnose it before relying on the vehicle.

Can I just clear P2290?+

It returns as soon as pressure drops again. Start with the simplest cause — oil level and condition — then work through the pressure-control components.

Read & clear P2290 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX