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Home >> Lincoln >> 2012 >> MKZ Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (Engine Controls (Except Diesel & Hybrid) - Powertrain DTC Descriptions - DTC P0193 - P0563) >> DTC P0507: Idle Air Control (IAC) System Rpm Higher Than Expected

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

WARNING: This page is about a different variant/trim than selected.
P0507 - IDLE AIR CONTROL (IAC) SYSTEM RPM HIGHER THAN EXPECTED

Description:  This DTC sets when the engine idle speed that is greater than the desired RPM.
Possible Causes: 
  • Intake air leak after throttle body
  • Vacuum leaks
  • Damaged evaporative emissions (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.
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