P2288
Injector Control Pressure Too High
Fuel injection (diesel HEUI)
Generic OBD-II
High
What it means
P2288 means the ECM sees injector control pressure (ICP) higher than commanded on a hydraulically actuated (HEUI-style) diesel injection system. Because injection pressure directly affects fueling, this can cause hard starting, rough running, and power loss. The usual causes are a sticking injection pressure regulator, a faulty ICP sensor, or a high-pressure oil-system fault.
High
Can I keep driving? Limited — high injection control pressure can cause hard starting, rough running, or power loss on these diesel systems; get it checked soon.
Common symptoms
What you'll notice
- Check-engine light on
- Hard starting
- Rough idle and reduced power
- Possible surging or, in severe cases, stalling
Common causes
Most likely first
- Sticking or faulty injection pressure regulator (IPR) valveLikely
- Faulty injector control pressure (ICP) sensor reading highCommon
- High-pressure oil pump or oil-system faultCommon
- IPR wiring or connector faultLess often
- Faulty ECM/FICM (less common)Less often
How to diagnose & fix
Work through it in order
- Read live ICP data and compare actual pressure to the desired/commanded value.
- Inspect the IPR valve and its connector for sticking or wiring faults.
- Test the ICP sensor and its wiring against the manufacturer's spec.
- Check the high-pressure oil system for faults affecting control pressure.
- Replace the IPR valve or ICP sensor as the data indicates, then clear and re-test.
FAQ
Quick answers
Is it safe to drive with P2288?+
Drive as little as possible. High injection control pressure can cause hard starting, rough running, or power loss, and driveability may get worse — get it diagnosed promptly.
Can I just clear P2288?+
It will return until the pressure fault is fixed. Clearing it can help confirm whether the problem is constant or intermittent, but it is not a repair.
Related codes
Often seen with P2288
Read & clear P2288 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX