Hi, I’m new here and I need your expertise. I’ve searched everything but found nothing suitable so far. Short to me and my car: I, 26 years old and beginner hobby – screwdriver drive a 850 2.5 10V with 144Ps Mj 1996 for two years with a Kme Nevo car gas system. Drive the car for over two years and so far no problems, only the usual care and the usual wear. Now I have for some time, especially when it’s cold outside, strange Dre The speed always jumps up and down in idle mode. Whenever the engine is still cold. Sometimes it goes away on its own after a short time and the speed is normal again. Sometimes it remains permanent, so that only a new start of the engine fixes the problem. The whole looks like this: https://youtu.be/-pU8hWNylQ (I know the ABS lights up, SG is in reperature) In addition (in case of a warm motor) the speed when accelerating is short. This occurs however very irregularly. For example: acceleration in 3 gear 2500 u/min and suddenly the speed rises to 2900 u/min and falls back to normal. Feels a bit like a turbo. The abnormalities occur both on petrol and on gas. Hope someone has an idea Dear greetings and Thank you