Had to get my car towed home today.  Ran great when I left.  Parked and when I went to leave it was sputtering and farting.  Looked at my fuel pressure and it was only 20 psi.  So I went to turn it up and nothing and at the same time I pulled my feedback port out of the regulator.  Get it home and changed the regulator.  I have fuel at rail but there is no pressure.  Car almost wants to start.  I can hear the pump running.  I'm wondering if I lost the sock on the pump or collapsed the fuel filter?
So what do you smart guys think?