Hello, we have the problem with our Sprinter that there is an irregular and not reproducible loss of power, whereby the engine control light goes on. Only by repeatedly restarting the engine, the vehicle can be driven rationally again. The car was already several times in the Mercedes specialist workshop, where the error memory was read out (error throttle flap), and then several times! throttle flap, a sensor and the engine control unit were replaced. Cars don’t know, but suspect that there could be a cable break. A new wire harness would probably not be economical anymore, so I want to measure the cables. Can someone help me out with a schematic, or tell me which plug with pin assignment (motor control unit?) the throttle valve is connected to?