Seems like you are on your way to success,bad connection somewhere? problems like these are hard to figure out,i told you the story about that little silver box that was arching on the coil bracket and how one of my cars would die every so often, something else i remembered that i had hell with was the following... on the drivers side next to the firewall there is a ground strap, its bolted from the back of the head to the body of the car,mine was green with corrosion and no matter how many times i would try to start the car sometimes it would and most of the time it wouldn't.
These cars are very finicky about grounds,ive seen cars with grounds dragging under the car and they run great, these cars dont, when swapping computers,did you reinstall your computer ground by the kick panel?
That's awesome you have extra TFI modules now,once you get your car going get you a little box and put a coil, a TFI module and the smallest tools you can find to do the job and put that little box in your trunk,i got one and it makes me feel a lot safer when i'm out and about, last time my module went out it was in the middle of traffic and i had no triple A or anything like that, it cost me 150 bucks to have my car towed 2 miles to my home,not happening again.
