What are the consequences of a faulty car throttle valve?

[VonDaniella]

1. Effects: It can cause engine shaking, insufficient power, and excessive fuel injection. Throttle valve failure can lead to engine shaking, but engine shaking is not necessarily caused by throttle valve failure. There are many reasons for engine shaking, which may be due to problems in the intake system, fuel system, or ignition system. 2. Common issues in the intake system: First, excessive impurities in the throttle valve and intake manifold can prevent the onboard computer from accurately controlling the idle intake air volume. Second, the air-fuel mixture may be too rich or too lean, usually due to intake manifold leaks. Fuel system problems are often caused by the use of low-quality gasoline, leading to fuel pump blockages or incomplete combustion of the air-fuel mixture in the cylinders, which can also cause engine shaking.