Paul,
Just got some interesting info. Spoke to previous owner, he told me the PCM is not the orginal one for the car. The old one supposedly but the dust. I was looking at the one that was in it and right under the bar code where the harness plugs into the PCM it says REMANUFACTURED! COuld it be that this PCM has bit the dust and the reason it wont run on my spare PCM is because it is not compatible.. I was told my spare came from a 98 SVT, you would think it would work! Are theses PCM's know to just "Go bad"? Get back to me