TW Chip question
Ok, here's the scoop. I installed a TW 4 position chip in a friends truck, (2000 F-350 6 speed). After installing, we checked that all positions worked and they did. This was on a Friday evening. He left Saturday morning and drove 180 miles to Kentucky pulling a 35 ft. gooseneck with 2 Jeeps. Drove home Sunday and everything was still working great. Sunday night he got in the truck to leave and the "check engine light" came on and stayed on and the truck would not start. He cycled the key a few times and got it to start. Did this again Monday and then yesterday. I had him remove the computer and check the connection terminals. He recleaned them and reinstalled the chip. The truck started, he switch through all the positions and then back, shut the truck off and it would not restart. He removed the computer again and rechecked, reinstalled and the same thing happened. Removed again, reinstalled and never could get it to start. Completely removed the chip and reinstalled the computer and it starts and runs great. Anybody have any ideas? I've seen where they wouldn't start at all because of a bad connection but never seen one do this. Any help is greatly appreciated and sorry for the novel of a post.