My 2002 F-150 has an frg valve code showing. The truck idles extremely rough, and hesitates when I hit the gas. Once it is running it shakes horribly. Anyone have any experience with this?

 

There's no such thing as an "frg vlave" or any code about such a part.

Start over with the exact fault code. Please SEARCH for previous discussions using the DTC as your search argument. Most of the common ones are FAQs.

Steve

 

I'm guessing the frg is supposed to be EGR. And you can probably do some searching to find out what others have found.