Cpasour

I have a 92 3vze that is missing, bucking, and some almost dies I can try and rev it up a few times and sometimes it will go. I pulled the vaccuam lines off the fuel pressure regulator and the big line has gas in it I was trying to find out if it is bad and could this be causing my problems

hambob

Sure is a strong possibility. if there's gas in the vacuum line than the internal diaphragm is busted and fuel is being sucked into your intake. Not to mention that the FPR isn't doing its job properly.

Cpasour

Ok there is no gas in the small vacuum on top but the larger vacuum line on the side so there should be no gas in either

MudHippy

Wrong(well... half-right). The small line at the top is a vacuum line(to the FPU VSV). The larger line on the side is the fuel return hose(to the fuel tank).

http://personal.utulsa.edu/~nathan-b...89fuelpres.pdf

http://personal.utulsa.edu/~nathan-b...ne/99fuelp.pdf

Cpasour

Ok thanks I wasn't sure