How to detect the fault of valve sensor

To detect the fault of the valve sensor, we should first unplug the connecting plug of the sensor, and then measure the resistance between the signal output end and the grounding end of the sensor with a multimeter, so as to detect the specific fault position and solve the problem.

Sensors are devices that convert quality signals into measurable electrical signals for output. Damage to the valve position sensor will lead to engine jitter and unstable idle speed.

Because the throttle position sensor is a signal to detect the throttle opening, the engine computer will adjust the fuel injection quantity and ignition time according to the throttle opening.

If the throttle position sensor fails, the engine computer will not receive the signal correctly, which will cause the engine to fail to start.

There are three common faults of throttle position sensor, one is idle switch short circuit or short circuit, the other is improper installation and adjustment of throttle position sensor, and the third is poor contact of limit variable resistor sliding contact, which leads to intermittent interruption of throttle sensor output signal. Million car purchase subsidy