What are the common faults of the throttle position sensor?

[CameronLee]

The common faults of the throttle position sensor are: 1. Idle switch short circuit or open circuit; 2. Improper installation or adjustment of the throttle position sensor, causing the idle switch not to close when the throttle is fully closed, or the idle switch remains closed when the throttle is partially open; 3. Poor contact of the sliding contact of the linear variable resistor, resulting in intermittent signal interruption from the throttle position sensor during the process of the throttle moving from fully closed to fully open. When the throttle position sensor exhibits the above faults, it can lead to abnormal engine idle operation (such as excessively high or low idle speed, unstable idle, or easy stalling at idle) or abnormal engine acceleration (such as engine shaking during acceleration, delayed acceleration response, etc.). Sometimes, it may also cause intermittent engine shaking during operation.