oem computer made to stand alone for trans?

[Dustytrix]

I have read where someone used the factory computer to work with ls engine carb setup. He used it for firing the coils instead of the msd box firing them. I am wondering if anyone has ever used the factory computer to work the transmission only? It would be a lot cheaper to buy the ls computer to work my 4l60e in my old project than to buy the tci stand alone. Any ideas ?