1.0 MPI ALL runs very unevenly

Good morning I have a problem with the idle running of my 1.0 MPI ALL with 50 HP of ́ 99. When I turn it on for the first time on the day (whether in the morning cold or at noon or in the evening) it sometimes runs very unevenly (more recently) and runs out. Especially when braking at the traffic lights or when driving in (have servo). I turn it off and wait for something e.g. when shopping, often goes again. But not always. Sometimes I also have to turn it on and off. He gets fuel quite normal and consumes no more. Passage is normal and he also manages his 150-160 on the track when it has to be and he has time. New are (since ~ 2000 km): – spark plugs – runner -finger (since 10 tkm), were still IO at the look – LukeFi – fuel filter – interior filter (he has to do with it no more). – coolant sensor, original (since ~ 8000 km) – Drosselklappe was expanded and completely quieted?