Why is the signal of Jetta accelerator pedal position sensor 2 too small?

Jetta's accelerator pedal position sensor 2 has a weak signal because there is no power supply. Check the wiring of the car immediately, check whether the wiring of the car has a short circuit or an open circuit, and repair it immediately. Throttle position sensor can also be called throttle opening sensor, which is used to check whether the engine is in idle working state or compound working state. When the throttle is in the idle position, the idle contact is closed and the idle working state signal is output to the computer. When the throttle is in other position, the idle contact will open, and the computer can identify the engine load through the signal of the throttle position sensor, so the fuel injection quantity of the engine will be modified. The speed of the vehicle has a vital relationship with the throttle of the vehicle. It is necessary to clean the throttle regularly to prevent carbon deposition.