Possible Causes
WARNING: This page is about a different car, the 2002 Nissan Pathfinder and 2002 Infiniti QX4. However, it is still accessible from the selected car via links, so may be relevant.
ECM illuminates MIL and sets DTC P0507 when idle is 200 RPM or more higher than target speed. Possible causes are:
- Defective IACV-AAC valve.
- Poor, loose, corroded or damaged terminal connections.
- Intake air leak.
- Air control valve.
- Intake air leaks.
- PCV system.