Moin Moin, I need your help, my elk (125 kW petrol MJ 2000 250tkm) always has sporadic power loss. On the highway he can no longer make it more than 4000 rpm. Also in the city I sometimes kick the gas on the sheet metal and I only speed up at the snail speed, other times everything is normal again and I think I am sitting in a fresh elk. But I also have no mistake when reading out in the memory. Oh yes, it does NOT jerk and twitch, only no more accelerations just. The following parts are freshly changed: air mass knife, throttle valve (repeated), lamda control probe Have now actually only the ignition or the injection on suspicion. But how can I find out where or in which cylinder the error lies? Or do you still have an idea where the error might come from? I am grateful for every advice. Wish you a nice rest day.