P2286
Injector Control Pressure Sensor Circuit High
Injector circuit
Generic OBD-II
High
What it means
P2286 means the engine computer sees an abnormally high voltage from the injector control pressure (ICP) sensor circuit. On diesels that use high-pressure oil to fire the injectors, this signal is essential for starting and running, so a fault here can cause hard starting, reduced power, or stalling and should be diagnosed without delay.
High
Can I keep driving? Drive with caution — on these diesels the injector control pressure signal is critical, so hard starting, low power, or a stall are possible until it is fixed.
Common symptoms
What you'll notice
- Check-engine light on
- Hard starting or extended cranking
- Low power or a limp-mode limit
- Rough running or stalling in some cases
Common causes
Most likely first
- Corroded or loose connector at the injector control pressure (ICP) sensorLikely
- Signal wire shorted to voltage or an open in the circuitCommon
- Failed ICP sensorCommon
- Contaminated sensor from an oil leak at the connectorLess often
- Failed injector control module or PCM/ECM (less common)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data, then inspect the ICP sensor connector for oil contamination, corrosion, or spread pins.
- Check the signal, reference, and ground wires for shorts to voltage and for opens.
- Compare the sensor's live pressure reading to actual rail pressure; a fixed high reading points to the sensor.
- Replace the ICP sensor if it fails testing, using a clean connector.
- Verify control-module supply and grounds before condemning the module. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P2286?+
Drive only as needed. The injector control pressure signal is central to fuel delivery on these engines, so hard starting, low power, or a stall can occur. Diagnose it promptly.
Can I just clear P2286?+
It will return until the wiring or sensor is repaired, and clearing it does not restore normal fuel control if the signal is faulty.
Related codes
Often seen with P2286
Read & clear P2286 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