Where is the Volkswagen sagitar throttle position sensor?

The throttle position sensor of Pacific Auto Network is mainly used to detect the change of throttle opening. It is installed on the throttle body and converts the change of throttle opening into an electrical signal, which is input to the ECU. The ECU judges the working condition of the engine according to the throttle position signal, and then the computer corrects the fuel injection quantity and ignition timing according to these working condition information.

Throttle sensor fault:

1, idle switch short circuit or open circuit;

2. Inappropriate installation and adjustment of the throttle body position sensor leads to the idle switch not being turned off when the throttle body is fully closed, or the idle switch is still turned off when the throttle body has a certain opening.

3. The sliding contact of the linear variable resistor is in poor contact, and the output signal of the throttle body position sensor is interrupted intermittently during the process of the throttle body from fully closed to fully open.

The fault of the throttle sensor indicates that the fault of the throttle sensor will affect the idling control function of the engine computer, resulting in abnormal idling operation of the engine (such as too high or too low idling speed, unstable idling speed and easy flameout) or abnormal acceleration of the engine (such as engine jitter during acceleration and slow acceleration response), and may also lead to intermittent jitter of the engine during operation.

The fault of throttle position sensor may be caused by connector corrosion, poor contact, non-conduction, initial position misalignment and high or low voltage. It should be detection, repair and adjustment: start the engine, operate the throttle by hand, keep the engine idling, loosen the two fixing screws on the sensor, turn the throttle position sensor counterclockwise, and detect with a multimeter. First disconnect the upper and middle terminals, then slowly turn the sensor clockwise to connect the upper and middle terminals, and then.

(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)