Hello together, my coupe has converted from 1.8 to 2 liter turbo and so far has driven almost 2 tkm. The engine has been running worse and worse over the period, troubleshooting has resulted in an oxidized mass connection of the strand from the LMM and coolant temperature sensor. On the wire harness an additional mass was attached to this strand by the previous owner. In the schematic, however, this is not available. I also removed it accordingly and completed a test drive which after 700 meters with impact-like a Now to the actual problem: the engine can no longer be started (starter rotates naturally), on the MID there is a current speed of 12 km/h although the car is standing, current consumption and speed are also displayed. On the instrument cluster nothing is shown (speed and speed) there only the engine service and engine error indicator flashes extremely fast (flakes 10 times the second). measured, as far as I.O.. Second control unit tested with the same result. Backups also controlled all. I’m a little helpless, maybe someone has an idea why the control unit thinks the engine is running although it is not running. Also don’t have access to the engine control unit with OP-Com.