SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2010MUSTANG BASE, 2D COUPE, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - POWERTRAIN DTC CHARTS & DESCRIPTIONS (EXCEPT DIESEL & HYBRID)DTC DIAGNOSISDTC P0507: IDLE AIR CONTROL (IAC) SYSTEM RPM HIGHER THAN EXPECTED
2010 Ford Mustang Base, 2D Coupe, Automatic

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

2010 Ford Mustang Base, 2D Coupe, AutomaticSECTION DTC P0507: Idle Air Control (IAC) System Rpm Higher Than Expected
DTC P0507: IDLE AIR CONTROL (IAC) SYSTEM RPM HIGHER THAN EXPECTED

For Vehicles With An Idle Air Control (IAC) Valve 
Description:  This DTC sets when the powertrain control module (PCM) detects an engine idle speed that is greater than the desired RPM.
Possible Causes: 
  • IAC circuit short to ground
  • Damaged or incorrect IAC valve
  • IAC valve stuck open
  • Intake air leak after throttle body
  • Vacuum leaks
  • Damaged evaporative emissions (EVAP) system
  • Exhaust gas recirculation (EGR) valve leaks vacuum
Diagnostic Aids:  Disconnect the IAC valve and look for little or no change in engine RPM as an indication of a stuck or damaged valve.
For All Others: - 
Description:  This DTC sets when the powertrain control module (PCM) detects an 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 
Ranger GO to PINPOINT TEST KE .
All others Refer to the Description, Possible Causes and Diagnostic Aids for the appropriate DTC.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.