dudelovesit

Sounds like a pretty gnarly vacuum leak to me. This might be totally irrelevant, but my windstar threw the exact same codes at me when the upper intake were loose. Basically the whole upper intake was rattling around on top of the engine. Take it or leave it, but I thought I would throw something a little different out there.

verytalonted

Alright so I fixed it!!!

I took the throttle body off to clean it (truck has like 134,xxx on it) and I figured cleaning the TB was probaley a good idea and that I would find the huge air leak. The plastic tube that comes from the passenger's side valve cover runs around the side and snakes its way to the back of the throttle body elbow. At either end of the plastic tube is a rubber 'fitting' that the plastic tube to the PCV or TB elbow. The side that attaches to the back side of the TB elbow had colapsed from time and heat making a hole that got bigger and bigger with time, I replace the broken 90 degree rubber fitting witha small radiator-like hose from Vato Zone that I cut to size. The truck seems to be running fine again.

And I did clean the IAC and TB and TB elbow while I had it apart, so my intake it probaley pretty nice.

Hope this helps others with this problem, because I remeber when I was researching somebody said on some forum about a rubber thing, but they did not describe it well enough (and I had never seen the back side of all that stuff at the time)

Thank guys,
--Chris