This diagnostic trouble code indicates the engine control module detected insufficient injection control pressure during engine cranking. It occurs in diesel engines utilizing hydraulic electronic unit injectors that rely on high-pressure oil to fire. The system fails to reach the minimum pressure threshold required to initiate combustion.
Insufficient oil volume or oil that is too thick prevents the pump from building required pressure.
Worn o-rings, standpipes, or cracked fittings allow pressure to escape before reaching the injectors.
The valve controlling oil flow sticks open or fails to regulate pressure correctly during startup.
Internal wear within the pump reduces its ability to generate adequate pressure during cranking.
The sensor reports incorrect low pressure data despite adequate actual pressure in the system.
Internal computer fault preventing proper control of the pressure system, though this is rare.
Yes, insufficient oil volume prevents the pump from building required pressure.
No, this code is almost always caused by mechanical oil pressure issues or sensor faults, not computer failure.
Yes, thick oil in low temperatures can delay pressure buildup and trigger this code during cranking.
Typically no, as the injectors cannot fire without adequate high-pressure oil.