Electrical diagram(s)
Technical data
Possible causes
* Faulty cylinder 1 injector (under-fueling)
* Faulty MX Engine Brake cylinder 1
* Symptom: Slightly reduced power:
* Incorrect valve clearance
* Major imbalance in the drive shaft
* Symptom: Engine block vibration at high load, damaged flywheel
* Mechanical defect (for example damaged cam follower or broken valve)
Additional information
* The PCI ECU can detect and identify the cylinder contribution of every cylinder based on analysis of the rotational speed of the crankshaft using a:
* Cylinder-to-cylinder engine speed comparison, and
* Cylinder-to-cylinder rotational crankshaft acceleration comparison
* This DTC can be the result of another DTC that indicates too high of a combustion contribution of another cylinder.
Diagnostic Step-by-Step
