I have a 95 cav. 2.2 , was driving around and the check engine light popped on after driving a few blocks from my house turned the car off, got back in the light was off, took it and had it scanned and a code 27 came up, he gave me a print out that said quad driver module 'B fault. Called a local part store and they said it was probably the throttle positioning sensor or the idle air control solenoid? The car has a little rough idle and sometimes cranks a little before it starts, just wondering which would be the best to replace before I start throwing unnecessary money around. Thanks

first, i would remove and clean your idle air control valve. its real easy to find, if you haven't yet, get yourself a repair guide for your car. try cleaning your IAC first.



JBO Stickers! Get yours today!

I replaced my iac valve and also my throttle position sensor the car runs better than what it did but the check engine light still pops on, also all filters and plugs &wires have been replaced, I have a choltons book for it and it say's 95&96 has a pcm located behind the pass. fender I was curious if it was replaced could that be the cause of the problem?? Thanks