Because of the summer weather, Lang Wei started to drive at high speed. Is it normal? 15 15s self-collating

It is normal that the idle speed is too high when starting. Cars need high speed to make the engine work normally as soon as possible, and they need rich mixture, so the air intake and fuel injection will increase, resulting in high speed. The colder the weather, the lower the cold water temperature (generally about 85- 1 10 degrees lower than the normal working temperature of the engine), that is, the greater the working temperature difference with the normal engine, the computer will control the cold car.