After info please? I have a VL turbo calais original 300,000KM that had a rough running problem that I sorted out, but now the diagnostic screw at the ECU wont cancel the codes & appears to of been forced & when turning anti clockwise wont go back to the fuel mixture lights or RPM setting, does any one know if the screw pot in the ECU can be replaced? Thanks - Leigh

yeah, It can be replaced. I can send you one or you can send ECU here and I'll replace it on the bench and test it. PM me if you would like to arrange something.