Variocam Actuator Testing.

[j911brick]

Originally Posted by JFP in PA

Then your friend needs to go back to school; both the PIWIS and the Durametric system can activate the VarioCam units, one at a time so you can see the unit's response in the real time cam angle data. You would also note a significant change is the vehicle's idle when the cam moves as well.

But that wont tell you what the problem is. Its only a clue as to where to look.