CM870 Turbocharger Speed Sensor
10-11-2020, (Subject: CM870 Turbocharger Speed Sensor ) 
Post: #11
RE: CM870 Turbocharger Speed Sensor
He means 36 psi. Not 63. Its a typo.

I forgot its a cm870. Air controlled actuator. Using insite, run the actuator test (on/off) and make sure there is no actuator leaks for the actuator itself all the way back to the control module on the other side of the engine. I had an actuator that would only leak half way through its travel then would seal up at full compression. It would make the turbo surge fairly violently.

I actually caught it while I was troubleshooting another problem and was driving the truck with the dog box off and heard it leaking and skipping around.
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 Thanks given by: Rawze


Messages In This Thread
RE: CM870 Turbocharger Speed Sensor - Chamberpains - 10-11-2020



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