WOMS
P code powertrain Medium severity

P2022 Intake Manifold Runner Position Sensor/Switch Circuit High Bank 2

The OBD2 code P2022 indicates that the intake manifold runner position sensor or switch circuit for Bank 2 is reporting a high voltage signal, which may suggest a malfunction in the sensor or its circuit

Definition

The OBD2 code P2022 indicates that the intake manifold runner position sensor or switch circuit for Bank 2 is reporting a high voltage signal, which may suggest a malfunction in the sensor or its circuit

Common causes

  • Faulty intake manifold runner position sensor
  • Damaged wiring or connectors in the circuit
  • Short circuit in the sensor circuit
  • Open circuit in the sensor circuit
  • Faulty engine control module (ECM)
  • Vacuum leaks in the intake manifold
  • Carbon buildup in the intake manifold
  • Malfunctioning intake manifold runner control (IMRC) actuator

Common misdiagnoses

  • Faulty intake manifold runner control valve
  • Wiring issues or short circuits in the sensor circuit
  • Faulty engine control module (ECM)
  • Vacuum leaks
  • Throttle body issues
  • Incorrectly calibrated or malfunctioning mass airflow sensor (MAF)
  • Other intake manifold issues or blockages
  • Faulty or dirty fuel injectors

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other trouble codes that may be present. This can provide more context and help identify related issues

  2. 2. Inspect the Wiring and Connectors

  3. 3. Visually inspect the wiring and connectors associated with the intake manifold runner position sensor. Look for signs of damage, corrosion, or loose connections

  4. 4. Ensure that the connectors are securely attached and that there are no bent pins

  5. 5. Test the Sensor

  6. 6. If accessible, test the intake manifold runner position sensor using a multimeter. Check the resistance and voltage output according to the manufacturer's specifications

  7. 7. If the sensor is faulty, it may need to be replaced

  8. 8. Check for Vacuum Leaks

  9. 9. Inspect the intake manifold and associated hoses for any vacuum leaks that could affect the sensor's readings

  10. 10. Use a smoke machine or carburetor cleaner to help identify any leaks

  11. 11. Inspect the Intake Manifold Runner Control (IMRC) System

  12. 12. If your vehicle is equipped with an IMRC system, check the operation of the runner control mechanism. Ensure that it is functioning properly and not stuck in one position

  13. 13. Check the Power and Ground

  14. 14. Verify that the sensor is receiving the correct voltage and ground. Use a multimeter to check for power at the sensor connector

  15. 15. If there is no power or ground, trace the wiring back to the power source or ground point

  16. 16. Clear the Codes and Test Drive

  17. 17. After performing any repairs or adjustments, clear the trouble codes using the OBD-II scanner and take the vehicle for a test drive to see if the code returns

  18. 18. Consult the Service Manual

  19. 19. Refer to the vehicle's service manual for specific diagnostic procedures and specifications related to the intake manifold runner position sensor and circuit

  20. 20. Seek Professional Help

  21. 21. If the issue persists after performing these steps, it may be necessary to consult a professional mechanic for further diagnosis and repair. By following these troubleshooting steps, you can systematically identify and address the cause of the P2022 code