Trying to find a mask and bin file for a 91 350 TPI (AUJP) I have found a few that I thought matched but Winbin keeps telling me either the ecu file or the bin file does not match. Is it the files or is there a secret to this? Please help a newbie, first try at burning my own prom. Thanks!!!!!

Chris

 

did you try the ones found here?
http://www.diy-efi.org/gmecm/ecm_info/1227730/

 

After that post I tried out those files and they seemed to work ok in WinBin. I used the ECU marked
7738 8d and the aujp 1350.bin