It doesn't have a vacuum line attached to the fuel pressure regulator.
From your description I would guess that your car has a bad fuel pressure regulator. To check the fuel pressure regulator remove the vacuum connector from the throttle body. If gasoline comes out of a vacuum line the diaphragm has ruptured allowing excess gasoline to enter the intake through the vacuum line. If that is the case you will need to replace the fuel pressure regulator.
Under the upper intake manifold, attached to the bank of injector poppets, aka "the spider".
Where is the fuel pressure regulator located on a 1998 Chevy van
on the drivers side of the fuel rail part of the intake manifold, it has a vacuum line connected to the top of it.
The 1974 Chevy truck has a mechanical fuel pump with a built in pressure regulator.
where is the fuel pressure regulator on1991 lumina 3.1 /
It controls / regulates the fuel pressure.
The fuel pressure regulator is located in the throttle body.
Fuel Pressure Regulator is located on the fuel rail.
Voltage regulator? Inside the alternator. Fuel pressure regulator? Inside the throttle body.
I think the fuel pump is the regulator on fuel injected engines. The FPR is located on the driver's side of the engine, it has a vacuum hose going to it and is held on with a spring clamp similar to AC connector clamp. On most 1996 Chevy Tahoes the fuel pressure regulator is actually inside the intake manifold. You must remove the intake manifold to replace it.
Where is the fuel pressure regulator located on a 1989 chevy silvarado with 5.7 liter engine