I'm going to replace the IAC tomorrow but I've been wondering about the wiring. The thing is the previous owner told me he replaced it with one from an Opel. It looks identical to the new "standard" I bought. However I read somewhere that the Opel ones have the coils reversed and therefore I'm wondering if the wiring was changed to accomodate that. Does anybody have a diagram of which end of the IAC should go to which pin on the ECM?