I see these codes all the time in Fords and it is nearly always caused by a severe vacuum leak. What usually happens is one of the large rubber connectors or PCV hoses collapse and suck a hole right through them.
List for a hissing noise at idle and try to follow it to it's source using your fingers. The sound will change when you block it.
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Tuesday, January 29th, 2013 AT 12:22 AM