Dear friends, it happens regularly at the start. When I start the car and start with a cold engine, the car stays at 20km/h while the speed at the pressure of the gas pedal rises from about 1500 to 2100 rpm at the same speed. After about 5-8 seconds the spook is over, the car switches back and then runs normally. Feels a little like during the emergency run. The problem is only just after the cold start. The engine lamp does not work. Also no errors are saved. Does anyone have an idea?