1g ECU interchangeable?

[tyger1]

I need to get a ECU for my 93 Talon TSI AWD and want to know if the 1g ECU are interchangeable? They have different part numbers. 1990= MD145903, 1991-1992=MD166262, 1993=MD193299, and 1994=MD304484. Are the Turbo ECMs for a manual transmission the same for the FWD and AWD models? the part numbers listed above are for the AWD 5 speed manual tranny. the FWD 5 speed have different part numbers. thanks

 

[-TunedDSM-]

91-94's are interchangeable whether it be AWD/FWD.

90's are specific to 1990 models. They can be used in a 91-94 by swapping a few pins.