NO. When a engine is running it makes it's own vacuum. That's why there is no vacuum hose on that year regulator. It is inside of the engine.
It doesn't have a vacuum line attached to the fuel pressure regulator.
there is no fuel pressure regulator " sensor ", there is a fuel pressure regulator controled by vacuum located at the front end of the fuel rail.
Fuel pressure regulator is located on the driver side fuel rail.
Stock base fuel pressure is 42 psi. This is the pressure when the vacuum hose is removed from the fuel pressure regulator. The vacuum hose must be plugged when its removed from the regulator.
At idle or deceleration.
It is located in the throttle body.
NO nothing hooks to it.
The vehicle does this on its own with a vacuum operated fuel pressure regulator.
you have to use a vacuum pump and aply pressure to it and if fuel goes into the regulator then its working.
The fuel pressure regulator is located right on on the fuel rail, it has a vacuum line at one end and a fuel return line.
There isn't a vacuum line going to the regulator on a 1998 Dodge Caravan.
The fuel pressure regulator controls fuel pressure at the fuel injectors. It uses vacuum pressure to control the pressure. It is positioned on the end of the fuel rail. If they leak, fuel will go into vacuum line causing hesitation on start-up and the smell of gas at exhaust. Warning, Fuel is under pressure. Disconnect battery and release pressure before replacement.