Using datamaster I got the new cable connected and still the same story, I'm getting a "lost com" error but this time I did notice "trans" in the message.
I wonder if has something to do with the fact that I am still running the trans from the V6? I used the ECM from the 350 and the harness is also from the V6 lengthened where needed and re wrapped. Both trans are the 4l60e and all seems to be running well. I'm pretty sure I'll need to have the computer link, aldl cable working before it will pass the emission police.
Would a loose plug into the trans housing be causing this?
I'll attach the file I was able to save tonight, maybe you could point me in the right direction.

This weekend I plan to spend a bit of time on this to see if I can't get Tuner pro up and running. I simply need to sit in the truck within range of my wireless to read the tuner pro thread and install I think. I've printed the instruction, put file on the flash drive, left them till I have an opportunity then when I do finally get to it I'm lost. "lost com" LOL, that's me...