Just read the new issue of GM High Tech Performance. Got some news from their Formula 350 Build up. After getting it together they had some major problems after some initial running. Codes told them nothing really, they just kept replacing thing that through codes, but to no avail it didn't help at all, maybe. What ended up happening was that they started to trace wires looking for shorts and found a blown fuse out beside the radiator. Replaced it and everything was fine.
Guess what the problem was? Horrid idle and driving. Sound familiar? It might be worth buying. It was with Popular hot rodding this month.

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89 Trans Am Turbo 3.8L All stock 43,000 miles #1053 of 1555

Past Thirdgen:
86 Trans Am w/ built 355TPI with SLP goodies and too much other stuff to List. One sweet *** car, wish I would have had a good enough Job to pay insurance on three cars so I could keep it, but for a 89 Turbo Trans Am w/ Low miles, I think I made the right choice!