I tried to read Vectra C 1.9CDTI with Kess V2 and does not support this ECU. Managed read by MPPS, but I don't trust the tool to write.
I also found a full BDM read for this software version.

It's possible to write MPPS file using Kess tool? I know kess can write this ECU but which file do I need since I cannot read with this tool?