P2117: Throttle/Pedal Position Sensor "F" Minimum Stop Performance

Definition

The OBD2 code P2117 indicates that the throttle or pedal position sensor "F" is not performing correctly at its minimum stop position, which can affect engine performance and throttle response

Common causes

Faulty throttle position sensor "F"
Wiring issues or damaged connectors
Faulty accelerator pedal position sensor
Malfunctioning engine control module (ECM)
Vacuum leaks
Throttle body issues (e.g., carbon buildup, mechanical failure)
Software issues or outdated firmware in the ECM
Poor electrical connections or ground issues

Common misdiagnoses

Throttle body issues
Accelerator pedal position sensor failure
Wiring or connector problems
Engine control module (ECM) failure
Vacuum leaks
Mass airflow sensor issues
Fuel delivery problems
Ignition system faults

Troubleshooting steps

1. Check for Additional Codes

Use an OBD-II scanner to check for any other trouble codes that may be present. Addressing any related codes can help in diagnosing the issue more effectively
2. Inspect Throttle Body
3. Check the throttle body for any signs of dirt, carbon buildup, or physical damage. Clean the throttle body if necessary, as buildup can affect its operation
4. Ensure that the throttle plate moves freely and is not sticking
5. Examine Throttle Position Sensor (TPS)
6. Inspect the throttle position sensor and its wiring for any signs of damage, corrosion, or loose connections
7. Test the TPS using a multimeter to ensure it is functioning within the manufacturer's specifications
8. Check Pedal Position Sensor
9. Similar to the TPS, inspect the pedal position sensor and its wiring for damage or poor connections
10. Test the pedal position sensor to ensure it is providing the correct voltage and signal to the engine control module (ECM)
11. Inspect Wiring and Connectors
12. Check all related wiring and connectors for signs of wear, corrosion, or damage. Repair or replace any faulty wiring or connectors
13. Verify Throttle Control Module
14. If applicable, check the throttle control module for proper operation. This may require specialized diagnostic equipment
15. Perform a Throttle Body Relearn
16. After cleaning or replacing components, perform a throttle body relearn procedure. This can often be done using an OBD-II scanner or by following specific steps outlined in the vehicle's service manual
17. Check for Vacuum Leaks
18. Inspect the intake system for any vacuum leaks that could affect throttle performance. Use a smoke machine or spray soapy water to identify leaks
19. Inspect Engine Grounds
20. Ensure that all engine ground connections are clean and secure. Poor grounding can lead to erratic sensor readings
21. Test the ECM
22. If all other components check out, the issue may lie with the engine control module itself. Testing or reprogramming the ECM may be necessary. 1
23. Consult Technical Service Bulletins (TSBs)
24. Check for any manufacturer-specific TSBs related to the P2117 code, as there may be known issues or recalls that could apply to your vehicle. 1
25. Professional Diagnosis
26. If the problem persists after performing these steps, consider seeking help from a professional mechanic or dealership for a more in-depth diagnosis. Always refer to the vehicle's service manual for specific procedures and specifications related to your make and model

Definition

Common causes

Common misdiagnoses

Troubleshooting steps

1. Check for Additional Codes

2. Inspect Throttle Body

3. Check the throttle body for any signs of dirt, carbon buildup, or physical damage. Clean the throttle body if necessary, as buildup can affect its operation

4. Ensure that the throttle plate moves freely and is not sticking

5. Examine Throttle Position Sensor (TPS)

6. Inspect the throttle position sensor and its wiring for any signs of damage, corrosion, or loose connections

7. Test the TPS using a multimeter to ensure it is functioning within the manufacturer's specifications

8. Check Pedal Position Sensor

9. Similar to the TPS, inspect the pedal position sensor and its wiring for damage or poor connections

10. Test the pedal position sensor to ensure it is providing the correct voltage and signal to the engine control module (ECM)

11. Inspect Wiring and Connectors

12. Check all related wiring and connectors for signs of wear, corrosion, or damage. Repair or replace any faulty wiring or connectors

13. Verify Throttle Control Module

14. If applicable, check the throttle control module for proper operation. This may require specialized diagnostic equipment

15. Perform a Throttle Body Relearn

16. After cleaning or replacing components, perform a throttle body relearn procedure. This can often be done using an OBD-II scanner or by following specific steps outlined in the vehicle's service manual

17. Check for Vacuum Leaks

18. Inspect the intake system for any vacuum leaks that could affect throttle performance. Use a smoke machine or spray soapy water to identify leaks

19. Inspect Engine Grounds

20. Ensure that all engine ground connections are clean and secure. Poor grounding can lead to erratic sensor readings

21. Test the ECM

22. If all other components check out, the issue may lie with the engine control module itself. Testing or reprogramming the ECM may be necessary. 1

23. Consult Technical Service Bulletins (TSBs)

24. Check for any manufacturer-specific TSBs related to the P2117 code, as there may be known issues or recalls that could apply to your vehicle. 1

25. Professional Diagnosis

26. If the problem persists after performing these steps, consider seeking help from a professional mechanic or dealership for a more in-depth diagnosis. Always refer to the vehicle's service manual for specific procedures and specifications related to your make and model