Hello dear forteers, I have a problem with my Coupe. I’m looking for the cause of the following problem. Maybe you have a tip in which direction to go. I was looking for the reason for the fluctuating idleness. Therefore I did the following: – Idle controller cleaned –> no – the temperature generator renewed –> no – Injector valves tested and cleaned –> no – Pressure regulator replaced –> no – Cooler renewed because leaks –> no At the moment, the idle speed of my 92 AAH still fluctuates slightly, in the cold state the engine even goes off (sometimes). In addition, there is a strong jerk when I go off the gas while driving (up to the third gear). When I steer in the stand, the speed also sometimes drops so much that it almost drains. – So I tried a second idle speed controller –> no – temperature sensor renews –> no – checked for false air and found a leak –> no When reading d it control unit came then always the error G70 – mass short circuit (air mass meter). Can it really lie on the LMM. With pulled off plug I noticed no change. The cable looks i.o.. petrol pump and filter are approx. 1000 km old and were changed before the problem and ran also without problems. Where should I start best?