There is a difference between CA and FED models - not sure about A/T or M/T.

The best way to find out is remove the 3 screws holding the ECU in place and read the part # stamped on top of the box. You might have to unplug the 2 connectors and take it out to read it.

Frank

'89 [color:"white"]G-Raider[color:"white"] [color:"black"]Supercharged 3.0L, MegaSquirt 2, lockup A/T, 2.5" exhaust, 172k, Cibie H4s/Oscar SCs, Hella Micro DE fogs, Cobra CB, Superwinch hubs, LSD rear/Aussie Locker front, Bilsteins, Lifeline AGM, Rust-Oleum