P1507 FORD - Idle Air Control Under Speed Error
- Faulty Idle Air Control (IAC) valve
- IAC valve stuck closed
- IAC valve harness is open or shorted
- IAC valve circuit poor electrical connection
If the problem persists, the IAC valve may need to be replaced.
When is the code detected?
- Engine Light ON (or Service Engine Soon Warning Light)
P1507 Ford Description
The Idle Air Control Valve (IACV) valve assembly controls the engine idle speed and provides a dashpot function. The IAC valve assembly meters intake air around the throttle plate through a bypass within the IAC valve assembly and throttle body. The Powertrain Control Module (PCM) determines the desired idle speed or bypass air and signals the IAC valve assembly through a specified duty cycle. The IAC valve responds by positioning the IAC valve to control the amount of bypassed air. The PCM monitors engine RPM and increases or decreases the IAC duty cycle in order to achieve the desired RPM.
P1507 Ford Information for specific Ford models
P1507 1998 FORD F150
P1507 1999 FORD F150
P1507 2000 FORD F150
P1507 2001 FORD F150
P1507 2002 FORD F150
P1507 2003 FORD F150
P1507 2006 FORD FUSION
P1507 2007 FORD FUSION
P1507 2008 FORD FUSION
P1507 2009 FORD FUSION
P1507 2010 FORD FUSION
P1507 2011 FORD FUSION
P1507 2012 FORD FUSION