P0507 Error Code: Idle Air Control Valve Issues

P0507 is a diagnostic trouble code (DTC) indicating a problem with the vehicle's idle air control (IAC) valve. The IAC valve controls air bypassing the throttle body to regulate idle speed.

Possible Causes

• Faulty IAC valve
• Wiring/connector issues to IAC valve
• Vacuum leak in intake system
• Throttle body problem

Symptoms

• Rough idle
• Stalling
• Poor fuel economy
• Check engine light on

Action

If experiencing these symptoms, have the vehicle diagnosed by a qualified technician promptly. Driving with a faulty IAC valve can damage the engine and transmission. The technician will use a scan tool to retrieve codes, inspect the IAC valve and surrounding components, and repair/replace as needed.