Mechanics

ERROR CODE P1507

Ford Expedition

2001 expediton 85000
I got the code today. Auto zone doesnt know what it is.
The paper said Idle Air Control System Underspeed error. What does it mean. Thanks, Steve
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Kallinsteve
November 17, 2007.




What it means is the RPM's are lower than the PCM wants, IAC valve or circuit should be checked, and or a clogged intake airway? How is your air filter?

Merlin2021
Nov 17, 2007.


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