What's wrong with the car throttle not rebounding?

1. The reasons why the accelerator line does not return are as follows: 1. The accelerator pedal is stuck. First, check whether the foot pad is stuck on the accelerator pedal. 2. If the throttle is stuck, directly pull the main shaft of the throttle body to see if it will return to its original position. If not, repair it. 3. The inside of the throttle line itself is rusted and stuck. Remove the throttle line and check whether it moves smoothly. Change the card when it is issued. 2. Note: If the throttle line is pulled too tightly and there is no free stroke, the throttle opening will increase during exercise, the computer signal voltage will be slightly higher, and the fuel injection will increase, resulting in the high idle speed of the engine, so waste oil must be used.