we have a 2006 Monaco Windsor with a 400 Cummins ISL. Recently we have experienced issues with our boost. Sometimes it works and when it does we get a check engine light that will flash and go off. ...
the turbo actuator moves a section of the exhaust end of the turbo to increase or decrease boost it is controlled by the engine ecm this from a diesel engine tech with 47 yrs working on cummins engines it is probably the the ex. end of the turbo that is binding and the actuator can not move it usually require a reman turbo that may or may not come with a actuator this is a expensive repai