Hello, today I have a tricky problem. It’s about a 850R, hand-cracked. He has problems with the idle. Everything is good in the stand, you can play with the gas, the speed drops again as fast as it should. As soon as the car drives, the speed hangs or rises by 500U/min before it falls back much too slowly to nominal speed. I have read a lot about it, the problem is not unknown. Unfortunately, however, a solution for me. It has something With the speed signal (which comes from the ABS) to do….just how? If you take the speed signal from the ABS on the speed board at the A3 connection, the speed falls normal during the ride (logically, you simulate the vehicle’s status, but the ABS and the entire speedometer are missing). If you roll out the car and play with the gas, the speed always hangs or falls too slowly back to nominal speed (as described). Just before it stands, if it is only completely l The reaction of the speed suddenly accelerates and it turns down faster again. From there it obviously lacks the speed signal….. Changed so far the LMM, throttle valve sensor, crankshaft sensor, ABS sensors of the VA including control unit, all vacuum hoses, the tacho board, the camshaft sensor was measured and the throttle valve cleaned. The whole ignition harness is new. Error codes are not stored. And now you please….i I’m curious.