Did you ever figure this out?
Does anyobody know what the difference between the 2 are, they both have the same pin out sizes 10P-18P-24P but the '89 version has more HP
I have an 88 and 89 1st Gen both Automatics however the plugs on 1 ECU is gray while the other ECU is yellow. I cannot read the label on the 88 ECU though.
