Hello, screwdriver friends. I’m in despair at the moment. It’s about a Chevrolet Kalos Bj 2005 94 Ps Last year I noticed that my car started to jerk after a cold night and I no longer have any strength to get up a mountain. After a little time and some KM then everything was fine again and I had no further problems over the ride. However, the problems continued until the warm days and stopped immediately. After the days of this year became colder again, the problem came up again and this time more violently. Now it was the case that at first the engine jerked without end and it went out when it turned down in the curve. After a restart, it always sounded as if the engine was going to swallow. After I started the engine again, I started driving and the problem didn’t occur any more. Be, the problem was gone again and I was able to continue. Then I drove to the workshop and they thought it was necessary to replace both lambda probes. Done. Both lambda probes were also replaced with the AGR, spark plugs valve lid, oil and oil filter change. The workshop called me that now everything is OK and I can pick up my car again. done. Test drive it was not to be made to fade as before. Much more performance no jerking or swallowing. The next day, however, I noticed a little familiar jerking and I thought oh no. The jerking went away immediately and I could drive normal. But now I drove across the country road and noticed immediately I did not come over 80kmh… Workshop called…Rosselklappe maybe dirty. Then I dismantled the suction hose and looked at with you throttle flap and yes it looked a little messed up. Cleaner on it everything cleaned up, drove off. I have to say here that as soon as I was at 80-100 kmh, that car then also shrugged in the lower aisles but only when I once drove 80-100 kmh not before. Again the workshop called, maybe the car has to learn again… Okay couple of days driven… 100 120 140 160 and even 180 kmh ( downhill xD ) no problem anymore. After a couple of weeks, the jerking started again and he loses again extreme of Leistun. g. This time the rolling does not stop even in the warm condition. Error message Misignition in several cylinders. What can I do now? False air I can at least find nothing. Hopefully someone can help me further.