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No fuel getting past Fuel Pressure Regulator

fergysr31
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fergysr31 Newbie

fergysr31

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No fuel getting past Fuel Pressure Regulator

Hello all.  I have an interesting problem that maybe one of you guys can help me with.  I have a r32 gtr with a R33 motor swapped into it.  I am getting good fuel pressure to the rail, but nothing is returning to the tank.  I have changed to a known good FPR from another car and get the same issue.  I put a hose on the bottom of the FPR and still get no fuel at all coming out of the FPR.   The car starts and revs good but only if I apply 12 volts directly to the fuel pump.   But even with 12 volts going directly to the pump, I still get zero fuel return.  I realize the fuel pump control module may be bad but that shouldn't have any affect on fuel return to the tank.  I verified I have good vacuum going to the fpr with the motor running.   The car seems to be running really rich(pulled plugs after only a few minutes of run time and they were black), I am guessing due to the fact that no fuel is getting past the fpr and probably overpressurizing the fuel rail(going to get a fuel pressure gauge and see what it is doing).  I confirmed with another car that even with motor off and during the 5 seconds the pump turns on when you first turn on the key, there should be some fuel return to the tank.   I have verified that none of the fuel lines are blocked or crimped.  Any ideas as to why no fuel is getting past the FPR would be appreciated. 

fergysr31 Newbie

fergysr31

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Finally figured it out after getting a fuel pressure gauge.  I had already found a hole in one of the hoses in the tank.  Come to find out, the other hose had a hole in it too right by the fuel pump and that is where most of the fuel was going.  fixed that and the car runs like a dream now.

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