Pu Sang's accelerator is broken. What are the symptoms?

The symptoms of Pu Sang's throttle cut-off are unstable idle speed of the engine, discontinuous decline of high idle speed, and difficulty in starting the engine, especially cold start. The engine with unstable idle speed or no idle speed is difficult to start, with insufficient power, poor acceleration performance, unstable operation, black smoke from the exhaust pipe of the car and increased fuel consumption. The following is the introduction of throttle valve: 1. Throttle is a controllable valve, which is used to control the air entering the engine. After entering the intake pipe, it will be mixed with gasoline (the mixing parts of different models of cars are different) to become combustible gas mixture to participate in combustion and work; 2. Four-stroke gasoline engines are generally like this. Throttle is one of the most important components in EFI automobile engine system. Its upper part is the air filter, and the lower part is the engine body, which is the throat of the automobile engine. 3. Whether the acceleration of the car is flexible or not has a lot to do with the dirt of the throttle. Throttle cleaning can reduce fuel consumption and make the engine flexible and energetic.