All is there any test to run to know which one is bad ( either a leaking injector or bad fuel pump) also my gauge says not to use on flex fuel systems and both my dodge and Toyota are flex fuel so no way to double check the gauge today.
The sound of the pump isn't really an indication of performance. I have replaced my pump twice now (on my 3rd pump), the first time it went bad, it sounded normal, the 2nd time, it was way louder than normal.
Anyways. Fuel pressure that low was 100% the fuel pump in my case. I don't like making guarentees, so I won't guarentee you it is the pump in your case, but it sure is where I would put my money... It really isn't very hard to replace, only takes an hour or two if your fuel tank is low (tank is much easier to handle if it isn't full of fuel).
I think you need to replace your pump friend... That fuel pressure is a no-go.
<< Is a writeup on fuel pump replacement.
Or click on the link to the right :: http://www.jeepforum.com/forum/f12/1...moval-1167482/
On a seperate note. In order to see if my return line was pinched, when I had the tank dropped and the return line unhooked, I tugged on the return line from both sides of the cross member and sure enough, I couldn't make the return line hose budge, it was pinched between the rear crossmember. Upon removal, it was quite literally crushed in half.