2002 Jetta TDI. New engine installed after botched timing belt job (lawsuit pending), I get a turbo overboost limit w/loss of power & acceleration, only after extended driving & during heavy throttle condition. I've checked vac lines & boost actuator rod movement using MightyVac. N75 boost solenoid has been replaced, but problem persists and is difficult to troubleshoot because of the conditions under which it happens. Engine restart fixes problem until next time.
Could bad MAF sensor cause this? I don't want to buy one if it's not likely this is the cause. And why would a new engine cause this problem to start?
Any other ideas would be appreciated.
Could bad MAF sensor cause this? I don't want to buy one if it's not likely this is the cause. And why would a new engine cause this problem to start?
Any other ideas would be appreciated.