yep already been there the fuel pump relay is new of my 90 745 which was running in top cond. throttle was taken a out and cleaned last week, radio suppression relay is of my 745 which was and still is running. i put the 89 parts in the 90 and the 90 runs fine. iac was cleaned when the throttle was. new air filter and injector seals. im trying to figure out what the obd code means i was told it has something to do with the speedo but not sure how it relates to idle problems. its my first time getting that code. im pulling working parts off my 1990 745 gle and putting the 89 parts in and the car runs fine. i dont remember if the 89's have a cold start valve but my 91 turbo has it .