Hello Elkgemeinde, Mein Elch, a 850er 2.5L 10V with 144hp (EZ09/96) has been a few problems for me for a few weeks. To the course: Mainly I use the elk for longer trips or in the winter to come to our ponies. Now I noticed in the summer that it consumes unusually much. At 130 km/h partly 12-14l, usually around 8-9l. What made me stutzig, that he needed the usual 8-9l again in between times. Especially if you get the engine properly Now some time ago I noticed it by a stuttering, especially in the lower speed range. Speak when starting at the traffic light. The whole with a semi-warm motor. Sometimes I could get back to the right speed with proper gas and the stuttering was over. Once it went out of my way at the traffic light and I had to certainly leave 20-30 seconds of Rödeln until the moose sprang up again. Unfortunately the behavior was not reproducible. Yesterday then I had the same problem. He went out at the traffic light, I left the moose again. He didn’t want to go straight away. After about 40 seconds and two attempts at the start, he wanted to do so and since then the “Lambda Light” is on. Today the moose runs again. Grad the winter shoes pulled up and tested air pressure. In the forum I found different solution ideas, which unfortunately only partly fit. -Rosselklappe -Flammsiebe -Benzinfilter -Thermostat -Nockenwellensensor -Unpressurized system / Temperatu r the intake air switching in the air filter between warm and outdoor air -Zündverteiler -0-Stellung timing belts Unfortunately I don’t have an ODBII device and my elk no longer has the nice box in the engine room. Now my question to you, which system should I check. The ignition and candles are relatively new. This was done at the beginning of the year before Tüv. My personal guess goes towards throttle valve, flame screen and gasoline filter. But could be something with the vacuum system. from 21339 Lüneburg. Does anyone have an ODBII Elchtester at the start? Greetings