How hot is it? Why does my car have to warm up? Starting in the morning, the car idling 1 100 rpm, about one minute before.

The idle speed of the engine is related to the water temperature. Usually when the water temperature reaches about 80 degrees, the engine speed will run to normal idle speed. When the water temperature is low, the engine speed will be slightly higher to speed up the engine and make the engine work in a better state as soon as possible.

When the weather is cold, the time for the cold start to return to normal idle will be delayed, and the response will be shortened when the weather is hot. So your situation is a normal phenomenon of cold start, don't worry.