Originally Posted by BelizeBlaze
everything inside the tank is new, now I drove off, the babe running smooth and sweet, then after like 15miles just shut down and wouldn't come on again - low fuel pressure again!
You should look into the following things:
-oil pressure sending unit-
check for bad wires or replace the unit if the wiring is good, it's right beside the distributor on the driver side of the intake manifold (well, thats where it is on the 90's style 4.3L anyway)
-check/replace your PCV valve-
it should rattle when you shake it if its functional.
If the ECM gets no reading from the oil pressure sending unit (intermitant/constant bad wire) or a reading it doesn't like (low or too much oil, a failing oil pump, or a faulty PCV valve) it shuts of the power to the fuel pump.
we'll hope you find a bad wire, replace the PCV and/or oil pressure sending unit. ....otherwise you may have a failing oil pump.
good luck ;P