Recalibrating your car’s accelerator pedal position sensor requires engaging the ignition and the accelerator pedal. In order to do a perfect job, ensure to turn the ignition key to the “ON” position. Then, carefully depress the accelerator pedal slowly until it is fully depressed. Ensure to do this from when the car idles down to full throttle. Usually, performing this exercise up to three times should help recalibrate the accelerator pedal position sensor.