Where is the throttle position sensor?

The throttle position sensor is installed on the throttle body and linked with the throttle shaft, and is operated by the driver through the driving pedal. Throttle position sensor, also known as throttle opening sensor or throttle switch, is a device for detecting engine state. The function of the throttle position sensor is to convert the state of the throttle opening into an electrical signal and send it to the electronic control unit ECU. The electronic control unit ECU obtains information such as engine working condition, idle speed, partial load and full load. And acceleration and deceleration information according to the throttle opening. Based on this, ECU can judge the different working conditions of the engine, so as to determine the injection time and ignition advance angle of the injector.