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 use a charger with boost function under cranking. I have measure the voltage on the charger later, And it charge with 19-20 voltage, not good! Is there something I can do inside the ECU, or need it service on vems.hu?
btw what about a 12V regulator to filter those spikes to be sold by the webshop?