I have a 1997 Jetta GLX with the 12v VR6. When I measure the fuel pressure at the injector rail I see 34 PSI, which rises to 44 PSI when I disconnect the vacuum line to the fuel pressure regulator. I tested fuel pressure at the fuel pump and find 96 PSI. I removed the (original equipment) fuel filter and found it to be pretty restricted (very scientifically -- I tried to blow through it) so I replaced it with a new one. This made no difference at all to my fuel pressure measurements -- I'm still seeing 34 PSI at the injectors when the Bentley says I should see 51 PSI at idle.
Is 96 PSI a good reading at the fuel pump?
What else might be plugged/kinked between the fuel filter and the injector rail? I don't see any issues with the fuel hoses.