Warning light Reduced Engine Power
I had engine tested said I need TPS. I have replaced with new parts the Throttle Body and the Pedal Assembly. I was told these are plug and go parts. After replacing car is worse than before. I have taken to mechanic and GM Dealer, mechanic says he cannot get pedal assembly to calibrate and dealer says it is the Throttle Body. Both parts are new Delco parts. What else could this be.