When asking for technical help at the very least let us know the version of firmware you are running.Cliff's Calibration (Mapping) Guide is a MUST READ: http://www.vemssupport.com/forum/index.php/topic,97.0.html
I have the same setup (M2.8 C20XE@Turbo) and I am using only logical level output (0/+5V) without IGBTs for driving Bosch 100 200 module. I don't like high current in ECU....