The car had plenty of fuel
Im not sure of the black stuff either...
My form of diagnosing is tearing things apart and replacing parts until things magically work? Unfortunately I don't have the experience to say its one part or the other.
Is there an fuel pump independent way of determining if the regulator is functioning properly?
Call me a noob, but my thought process was to 1) put everything back together, 2) disconnect the vacuum hose on the fuel regulator and hook it up to a hand pump. 3) Supply power to the pump and use the hand pump to draw the diagram up and or down and watch the fuel pressure. The assumption here is that the fuel pressure regulator is a binary device in that it either completely works or not.
In any case, if im going to replace this fuel pump, is there anything else out there that may be more reliable/better than the Walbro GS342 I have in right now?