L
Limited86
Guest
I have a 1986 Buick Regal Limited which i recently put a 307 H.O. in to replace a blown 307. The car runs great and has been for a few months. Recently though I put the original 442 ECM with a super chip in it, i got this computer with the engine. Upon doing this the "Service Engine light" began to come on. Sometimes it comes on after a few min of driving, other times, it may take awhile. I lose power when it does come on. I tested the computer and the code I got back was that the Throttle positioning sensor was to high or bad. The car I got the engine, carb, computer from was a friends and this never happened while the engine was in that car or while i had the stock 37 computer on the H.O. engine. Can anyone tell me what this may be from and how i can fix or trouble shoot it? Thanks