I have a 2003 Chevy Tahoe that keeps giving a Engine power reduction code. I just came back from the Dealer after having the computer re-programmed. At which time it was showing the following codes.P0120, P0220, P0654, P0740, P0785, P1516, P1518, P1860, and U1026. Please help me figure this out.
have the same problem?
Thursday, May 16th, 2013 AT 6:51 PM