Ian, are the insides the same? Just crack em open and take some pics or tell me its the same b/w the years.
I'll get pictures tomorrow. I haven't had them apart at the same time, but I think they were the same.
My '84 was the second to last month of production, and it still doesn't have the fabled one-chip socketed 533 ecu.
Ian in Portland
'84 533i