Service life of throttle sensor

10.5 million service life, most of the car throttle will not have any problems. But some cars also have problems with the electronic system on the accelerator.

After stepping on the accelerator pedal, the fuel injection quantity is not directly adjusted, but the throttle opening is adjusted. After stepping on the accelerator pedal, the throttle opening will increase, and the air quantity entering the engine will increase, so ecu will command the fuel injection system to increase the fuel injection quantity.

Throttle sensor function

Detecting the change of throttle opening and judging the running status of the engine are mainly used in the electronic fuel injection system and electronic automatic transmission system of the engine, which converts the change of throttle opening into an electrical signal and inputs it to the electronic control unit 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 according to the working condition information, which is essentially a variable resistor. Throttle position sensor can be divided into linear output throttle position sensor and dry output throttle position sensor.