Nissan Micra K11, 2000 – 2003, Idle problem

Hello community, I have recently exchanged a Nissan Micra K11 1.0 with 60 hp from 09/2000 (with ignition coils, without ignition distributor). The problem is that the car in idle mode adjusts the speed strongly. It goes after starting a clear shaking through the interior followed by a sagging of the speed. This repeats several times. As soon as it has warm driven, it does so at least 2 to 3 times and last in the traffic jam. Always in the stand. When it drives, I can not notice anything special. In the creep operation, it is already jerking off once and for all, but only when it has warm driven. However, it has never gone out yet, although I often had the feeling that it runs out right away because it does not quite lose speed. Is it not always pleasant when driving, because you have to give more gas for safety, but I do not know why the engine shakes so well, because when I give gas in the stand, there is no shaking through the interior. I am writing here that the speed is going up, but the inside is not a problem.