Idle speed doesn’t know what she wants… ???

Hello together! As with myself2 times, my idle speed spins with N or P! Only after the whole standing time and after I (yes was wrong) deleted the control unit in a brutal way and after that only on the gentle tour… At first was that much too high! First the stand speed was so, at approx. 1300 – 1500 rpm. After longer rides also a little more. Partially until shortly before 2000. That was actually also a few days later history again… Had this with Michael by PN already examined and doctored… Now it is exactly the other way around! Michael meant e.g. in the learning phase this can be normal, because everything takes place. Learning phase already after 50-60km. By the way, no mistakes were any more. At least none of those with motor electronics have to do with it! But now almost 1500km drive again and nu eats just the other way around… Rather too little, between 400 and 500 tours, when I am at a red traffic light or in the stop&Go nich on N or P sometimes don’t bother the Krieg? While I have to drive my home time.