ok how can i tell if the p28 that i want to buy if its a manual or automatic ecu

 

There is Automatic and 5 speed P28 ECU's

92-5 ECUs (P28, P30, P61, P72, P91, P08)

5spd = 000, 001, 002, 003, A00, A01, A02, C00, C01, C02, J00, J01, J02, G00, G01

Auto = J50, J51, 901, 902, C50, C51, C52, A50, A51, A52, L50, L51, G51

All those numbers/letters dispher between AUTO and 5speed ECU's
Those numbers are shown right after P28 on the ECU sticker.


DING DING! WOO!

 

Its in the serial number, but another way to tell is this. Take the top cover of the ecu of, with the ecu facing long ways there is a bar that runs across it (support for the ecu cover) and to the right of it at the top there is a bank of componet that control the automatic tranmission. Look for pics on google and places and compare pics of a auto and manual to see what im talking about. If its a manual those componets wont be there and it will be empty.

*edit* to the person above me, i was busy writing this when you posted.