I've searched for the 746 ecu file and have came up empty handed. I hate to fork over the dough for the tunercat setup and i can figure out how winbin works pretty easily. Just can't find the ecu file for a 92 RS. I know you can convert to the 747 cpu pretty easily but my friend is not liking that idea very much. Thanks ahead of time

 

I havent't been able to find any ecu file for the 8746 either, but I did run across an editor over at DIY-EFI ftp. ftp://ftp.diy-efi.org/incoming/gm8746.zip It has the most commonly edited items in it, but still missing a few. One thing to watch for: occasionally it won't calculate the correct checksum, resulting in a code 51. HTH

 

Check out ftp://ftp.diy-efi.org/incoming
Look for 8746jonprevost.ecu
It's probably what you're looking for.