Hello! I have a problem with the Sierra tournament again, 2.0i DOHC, 85kw: If I uncouple with a warm engine, the number of revolutions drops up to about 350 revolutions, the engine almost goes off, everything trembles. Then it catches again, commutes a few times between 350-800, around then stops at about 800. When giving gas, the engine pulls up perfectly, no stutter, stopper or similar! In cold condition there are also no problems! Does anyone have an explanation? Thank you for the answers! ZRA