I can't find a good picture to show you but basically the HPOP is under and behind the turbo. The IPR is in the HPOP, I think, on an 05. There are those here that have better saved resources than me--LOL.
it is an 05 6.0. there are no codes present. truck will start sometimes. we do not know how much preasure is at the icp we only know that we can hold it back with our thumb. there is good low oil preasure while cranking. ford