My 86 fiero uses a 1227170 ecm. If you clue me in on how to find out the other info you need (ie mask...), I'll try and find out for you. I have read online that all fiero v6 use the same ecm. Dave Mitchell _______________________________________________ Diy_efi mailing list Diy_efi at diy-efi.org http://www.diy-efi.org/mailman/listinfo/diy_efi