Hello, we have the problem with our Sprinter, that it comes irregularly and not reproducibly to a strong power loss, 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. I have no idea of cars, but suspect that a cable break could be present here. A new wire harness would probably not be more economical, so I would like to measure the cables. Can someone help me with a schematic, or tell me which plug with pin placement (motor control unit?) the throttle flap is connected to?