P0507 - Idle Air Control (IAC) System Rpm Higher Than Expected

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P0507 - IDLE AIR CONTROL (IAC) SYSTEM RPM HIGHER THAN EXPECTED

Description: This DTC sets when the engine idle speed is greater than the desired RPM.
Possible Causes: Intake air leak after throttle body Vacuum leaks Damaged evaporative emission (EVAP) system Exhaust gas recirculation (EGR) valve leaks vacuum Damaged electronic throttle body (ETB) Damaged PCM
Diagnostic Aids: This DTC is informational only and it may be accompanied by other DTCs. Diagnose other DTCs first. If no other DTCs are present, inspect the intake air system for air restrictions, vacuum leaks, and damage. If no concerns are present, clear the DTC and repeat the self-test.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	Refer to the Description, Possible Causes and Diagnostic Aids for the DTC.