I just decided he had the person he needed so I waited for you to do the hard work, Kemosabie

 

Yep! The Op is probably having at it now

 

If it's a MAF code, then it needs to be cleaned or replaced. We really need to know the exact "P" codes you have.

 

hey jbrew i have a ? for some reason i can't find how to post something. i did for this one but now i am not able to locate where to do it

 

Her is a picture of what your pcv hose may look like. Facing the engine, it will be on the left valvecover, and lead to the back of the throttle body. The hose may not have the thick insulation on it. But check each end to make sure it is connected, and without cracks or hole in it. A leak in the vacuum line will result in a lean code.
link.

This other link is the series of photos that the picture came from. The picture is item #34.


http://sites.google.com/site/fordf150p0171p0174fix/Home/


I hope this is of some help to you. The last link is loaded with images of the 4.2