What problems can occur with throttle valve failure?

[DelStephanie]

Throttle valve failure generally leads to: 1. The car cannot start, or after starting, the throttle valve inside does not return when the accelerator is pressed. 2. Black smoke emission and high fuel consumption. 3. High idle speed and unsteady acceleration. Relevant information about the throttle valve is as follows: 1. Definition of the throttle valve: The throttle valve controls the engine's air intake. Based on computer signals, it adjusts the mixture ratio of gasoline and air to ensure complete combustion of gasoline and generate power. In fact, every time a driver presses the accelerator, they are not pressing "fuel" but "air," compressing a certain amount of air into the engine through accelerator pressing and gear shifting. 2. Causes of throttle valve failure: Mostly, it is due to carbon deposits inside the throttle valve. The problematic throttle valve's interior is covered with black carbon powder from incomplete combustion. Prolonged use of the throttle valve and poor driving habits of the owner are the main causes of carbon deposits.