Suggest to repair at workshop, repair procedure as below:
1. Identify the car problem and diagnose for the root cause.
2. Check the gas pedal mechanism bearing, replace if necessary.
3. Check the gas pedal cable, replace if necessary.
4. Visual check the pedal installation position, readjust or remove if the position is not suitable.
5. Check the fault code and throttle body opening angle using a scan tool, clean the throttle body if necessary.