As it turns out, there is nothing wrong with my installation, connections or wiring. It was a professional job and they were impressed. Turns out my performance guy used to work with the guy that did mine and he was surprised where he works now as he was the ultimate in $30,000.00 sterero installations back in the early 90's.........I'm having it disconnected for 30 days to see if there are any more problems. They feel there is no connection to the fail safe mode or service engine light coming.............. [headbang]