Transgo shift kits 98 mustang gt

[Modmadness01]

Ok!!! A few weeks ago I posted a topic on my install of the transgo shift kit and my blinking O/D light problem after the install...Well after everything electrical replaced and having the tranny re-built the stupid light is still blinking ... I just got back from the shop and they hooked up a snap on scanner to it and soon as it went to pull the code the light stopped blinking so i said ok I'm gonna drive the car around for awhile and i did and maybe 5 miles down the raod it started to blink again and i brought it back blinking and he hooked it back up and poof it was gone.....everything has been replaced including the valve body and doesnt even have the kit in it .....the processor and the O/D button is the only thing left...whats wrong.....its the 4r70w tranny!!!!

Any help would be appreciated