My ECU supposedly was taken out by my ignition coil. (VW dealership explanation) So, I'm looking for a replacement ECU. I have a 92 Corrado SLC VR6 and my old ECU P/N is 021 906 258 CD. I read that CD is California emmisions. Interchangable P/N's have a DG, J, M, P, or BJ at the end. Anyone have any of these available?