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P code powertrain High severity

P2015 Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank 1

The OBD2 code P2015 indicates a problem with the intake manifold runner position sensor or switch circuit for bank 1, specifically related to its range or performance, suggesting that the sensor is not functioning...

Definition

The OBD2 code P2015 indicates a problem with the intake manifold runner position sensor or switch circuit for bank 1, specifically related to its range or performance, suggesting that the sensor is not functioning within the expected parameters

Common causes

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

Common misdiagnoses

  • Faulty intake manifold runner control valve
  • Vacuum leaks
  • Throttle body issues
  • Mass air flow sensor problems
  • Engine control module (ECM) issues
  • Wiring or connector problems
  • Fuel delivery issues
  • Ignition system faults

Troubleshooting steps

  1. 1. Check for Additional Codes

    Use an OBD-II scanner to check for any other trouble codes that may be present. Addressing related codes can help pinpoint the issue

  2. 2. Inspect the Wiring and Connectors

    Visually inspect the wiring and connectors associated with the intake manifold runner position sensor. Look for

  3. 3. Damaged, frayed, or corroded wires

  4. 4. Loose or corroded connectors

  5. 5. Repair or replace any damaged components as necessary

  6. 6. Test the Intake Manifold Runner Position Sensor

    Use a multimeter to test the resistance and voltage output of the intake manifold runner position sensor. Compare the readings to the specifications in the vehicle’s service manual

  7. 7. If the sensor is out of specification, it may need to be replaced

  8. 8. Check the Intake Manifold Runner Mechanism

    Inspect the intake manifold runner mechanism for proper operation. Ensure that it moves freely and is not stuck or obstructed by carbon buildup or debris

  9. 9. Clean any carbon deposits if necessary

  10. 10. Inspect the Vacuum Lines

    If the intake manifold runner system relies on vacuum, check for any leaks or blockages in the vacuum lines. Repair or replace any damaged lines

  11. 11. Check for Mechanical Issues

    Ensure that there are no mechanical issues with the intake manifold itself, such as cracks or leaks that could affect performance

  12. 12. Clear the Codes and Test Drive

    After performing the above checks and repairs, clear the trouble codes using the OBD-II scanner

  13. 13. Take the vehicle for a test drive to see if the code reappears. Monitor the engine performance during the drive

  14. 14. Consult Technical Service Bulletins (TSBs)

    Check for any TSBs related to the P2015 code for your specific vehicle make and model. Manufacturers may have issued updates or fixes for known issues

  15. 15. Seek Professional Help

    If the issue persists after performing the above steps, consider seeking help from a qualified mechanic or technician who can perform more advanced diagnostics. By following these troubleshooting steps, you can identify and resolve the underlying issue causing the P2015 code