What's the performance of burning the throttle?

The main symptoms of burning the throttle are: unstable idle speed of the engine, difficulty in starting the engine, especially difficulty in cold starting; Unstable idle speed or no idle speed; The engine is difficult to start; Insufficient power, poor acceleration performance and unstable operation; Black smoke from automobile exhaust pipe increases fuel consumption. The following is the relevant information: 1. Throttle is a controllable valve, which is used to control air to enter the engine and then mix with gasoline (different mixing parts of different models of cars) to become combustible mixture to participate in combustion and work. 2. Correct and standardized throttle cleaning can ensure the normal operation of the engine, but the cleaning must be controlled. Excessive cleaning will lead to premature scrapping of the throttle, and frequent cleaning will lead to the special coating in the inner cavity of the throttle being washed away gradually, which is more likely to cause greasy adhesion, thus forming a vicious circle. The end result is scrapping.