P2109 code refers to an issue with the throttle or pedal position sensor where it is not reaching the minimum stop performance required for proper operation.
P2109 Throttle/Pedal Position Sensor “A” Minimum Stop Performance
Code symptoms P2109.
1. Engine stalling or idling erratically
2. Reduced engine power or acceleration
3. Check Engine Light illuminated
4. Delayed response when pressing the accelerator pedal
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P2109.
1. Faulty throttle position sensor (TPS)
2. Damaged or disconnected wiring related to the throttle position sensor
3. Incorrect or faulty throttle calibration
4. Throttle pedal sensor malfunction
5. Electronic throttle control system malfunction
Code Solutions P2109.
1. Check the wiring and connectors for any damage or corrosion that may be affecting the signal from the throttle or pedal position sensor.
2. Perform a thorough inspection of the throttle body to ensure proper functionality and cleanliness, as a dirty or faulty throttle body can contribute to sensor performance issues.
3. Verify that the throttle or pedal position sensor is correctly calibrated and adjusted according to manufacturer specifications.
4. Reset the vehicle’s engine control module (ECM) to clear any stored codes and recalibrate the throttle or pedal position sensor.
5. If the issue persists, consider replacing the throttle or pedal position sensor with a new, genuine part to ensure proper performance.