Hmm.. nope I don't think it's anything other than electrical. My a/c currently doesn't work (leaking compressor and evaporator) so I've never driven with my a/c on. I'm positive that the actual rpms do not go up relative to the tach as I once noticed it while cruising at ~2500 rpm and it climbed to 5000 rpm without me touching the pedal. My speedo stayed right where it was and there was no discernable change in exhaust tone. I'm sure I would have noticed a 2500 rpm difference. So... I think it's electrical. I'll try disconnecting the turbo timer. Does anyone know if Greddy has an online manual available for the timer? I was told I would be getting all manuals when I bought the car but I ended up with none!!



Thanks!