If you keep the speed to 2000 revolutions, it runs, but very unevenly, almost hopping. If you let go then, if it is a little warmer, then the engine runs quite quietly. Idle speed fluctuates between 700-1200. Driving is not possible. It stutters and goes out more often. So far: OT Geber MAP Sensor Ignition coils+Certain cams camshaft sensor air filter temperature probe DK removed and cleaned New battery+pole fuses fuses scoured problem bl The first error message came today: P 0300 (Willabrual misignitions) In the data set you can still find: Fuel system 1 OL (Open Loop) Lambdasonde 1 (Regelsonde vorm Kat ) is so fixed that I can neither solve it from above nor from below. Heating also brought nothing. I have no lift or similar, which makes it difficult of course. Who can help with his knowledge? Should I change oil, oil filter and fuel filter on suspicion? Fuel filter is where? V I can’t find anything under the car. Is there an idle controller? If so, where? I would be extremely grateful if someone could help me.