LA3 swap in 84 t/c
Reply #7 –
I have a chart somewhere in the shop that spells this out in every detail. From memory it is easy. As far as the ACT if not wired in a SES light will stare you in the face ASAP. It does very lttle but necessary to cancel codes. Also the LA3 has outputs for the IRCM. The early ECM does not!!! Not needed on the early car as the fan circuit is DIFFERENT and seperate from the ECM!!