Ok I looked your file.. You are running without camsync ? Have you tested with that?
I have understood that there have to be that c cync to run with fully seqvential injection and ignition (coil over plug) . I guess you are running with somekind of wastedspark coils now?

Here in Finland is one vems + M50 project also... Your E36 is the first M50 + vems I have heart to run .. . Are you willing to share your megatune file ? *.msq config.txt and tables.txt. Or have you got them in your own page in the vems.hu members site? I am also going to run with original sensors ...