Totally non GMECM related but.... I've got two Ford ECC-IV ecm's I was given. Seems the Ford guys don't have all the wonderful resources we do for identifing these. <grin> Can anyone ID these? EFI-SD7 / E6PF-12A650-G1A / LM10 (This is a 86 unit) EFI-SD18 / E9DF-12A650-E1B / D9C1 (This is a 89 unit) Reply off-list, save the bandwidth..... --> Bob Valentine --> bob at tecmark.com