What will happen if the accelerator position sensor of the car is broken?

The performance of the throttle position sensor is: poor idle contact, no idle signal, no idle speed or unstable idle speed of the engine, poor no-load contact and no full load signal input, which will lead to low engine speed and difficult acceleration. The computer adjusts the fuel injection quantity and ignition time according to the throttle opening. If the throttle valve is damaged, the engine computer can't receive the throttle opening signal correctly, which leads to the inability to accurately adjust the fuel injection quantity and ignition time. In severe cases, the engine may not start. The following are the reasons for the failure of the throttle position sensor: rusty connector, poor contact, low voltage or non-conduction, making the engine easy to stall or difficult to start. Initial position misalignment, high or low output voltage, resulting in unstable idle speed, high or low. Coating failure and resistance change lead to inaccurate output voltage, fast vehicle start and poor acceleration. Too much carbon deposits on the throttle valve and its lax closing affect the output voltage and flow, resulting in inaccurate air-fuel ratio and unstable idle speed.