After the Chevrolet Sail started in 2005, the idle speed will go up by itself. What's the matter (idle motor changed, throttle washed)?

Hello, I don't know what kind of process you are talking about. For example, in winter, when the car is just started, the idle speed fluctuates in a small range. For example, the idle speed immediately rises to about 1300 rpm, and then drops to about 800 rpm after the engine is warmed up. This is normal. If you mean that the idle speed has been rising, there must be something wrong with the car. It's best to go to a 4S shop or a large repair shop to check it out. Please adopt it. Thank you.