P2284
Injector Control Pressure Sensor Circuit Range/Performance
The injector control pressure (ICP) sensor on HEUI diesel systems reports a value that does not match expected operating range or commanded pressure. Affects fuel injection timing and quantity.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- ICP sensor driftCommon
- Leak in high-pressure oil systemPossible
- Sensor element aged beyond calibration windowLess likely
Parts involved
- Icp Sensor
- High Pressure Oil Pump
- Icp Wiring
P2284 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.