I'd appreciate any help that you can provide.
I had Jesse Bubb program a COS5 with tune (attached) to download into a 1999 Pontiac Firebird. I have EFI Live Commercial version.
When I flashed the complete operating system with tune into the Moates Road Runner, the car will start and idle smoothly for 3 seconds and shut down. It sets a DTC U1000 Class 2 Data Link Instrument Panel Cluster HC.
If I restart the car it does the same thing....idles smoothly for 3 seconds and shuts off.