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IDLE AIR CONTROL OVER SPEED ERROR.

(2001 Ford Escort)
in Porterville, CA on February 27, 2012
the canobd2 diagnostic tool gives a reading P1506.
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Popular Answer
on February 27, 2012
First, remove IAC and clean out all carbon and reinstall. Also, look for weak, collasped, broken or poorly seated vacuum lines. Lastly, replace PCV valve with a new one, it is probably due. Hope this helps you.
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