01 C5 ZO6 NEED HELP!!!!
by James Zompetti
My car is in the "Reduced engine power mode" I've pulled all the codes from the on board diagnostics. P1120HC, P1220HC, P1515H, P1516HC, P1518HC, C1214HC, C1278H, C1295H. I've had problems with the traction control for quite some time now. Basically it hasn't worked since I've had the car. It went into "reduced engine power mode" after a hard acceleration from 1st to 2nd. I've been doing a lot of research and work on it. I've replaced the battery. Pulled the throttle assembly off. Took it apart and cleaned it. Checked all my spark plugs and wires. I've cleaned some of the chassis grounds. Replaced the tps sensor. Pulled the RF fender off and inspected the PCM and the TAC module. Everything is clean and secure. There was no loose wires or plugs. The only thing that I have noticed is the TAC module rattles. There is something loose inside of it. Is This Normal? I've been to a few dealerships now and none of them were willing to offer any advice or help of any sort. No wonder GM is looking for bail out money. No customer service skills whatsoever! I'm at a complete loss on what to do.
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