well on my buddy jetta vr6 it would run like crap it would cut out acting as if it was misfireing so we changed the plugs nothing happen did a whole tune up still did it so we change the crankshaft sensor in it ran perfect



but it was just a seggestion
do you know for sure that it is misfiring>?
Quote Originally Posted by BTEC
explain your theory if u dnt mind. and how would one go about testing to see if thats what the prob is.