I have a few questions about the Digifant 2 system.
I have 90 Golf that has a 037 906 022 M ECU in it. The ECU from my Brother's car had a different letter in it.
What do the differences in part numbers mean? Can they be interchanged? Does it matter if the ECU is chipped?
Any addition information on the Digifant system is welcome, I'd like to learn all I can about it!
Any help is greatly appreciated!