Hello gang I need help I have a saab 9-7x with a 5.3 motor few weeks ago check engine light came on I went to the auto zone had the code read it said bad throttle body sensor so I ordered a A/c delco throttle body and installed it the car is running worse than before I took it to a local mechanic to look at he said it needs to be programmed and he does not have the program for it he also said I may have to go to the dealer has any one had this problem before ? Any help would be appreciated