It caused my GMC Sierra to hesitate on startup. I had to sit there and keep cranking it until it started.
Symptoms of a Bad Fuel Pressure Regulator Check related link below
Fuel delivery problems such as a dirty fuel filter, a fuel pump going bad, a faulty fuel pressure regulator.
A bad fuel pressure regulator will cause the car to stall or not run .
You will have and possibly no start. Remove the regulator vaccum, turn the ignition on and it shouldn't spray gasoline, if it does the regulator is bad.
the fuel pressure regulator on the fuel rail might be bad
To determine if your fuel pressure regulator is bad, check for symptoms such as hard starting, poor fuel economy, or engine misfires. You can also inspect for fuel leaks around the regulator or a strong smell of fuel. Using a fuel pressure gauge, measure the pressure; it should match the manufacturer’s specifications. If the pressure is too high or too low, or if you notice excessive fluctuations, the regulator may be faulty.
it's probably not, check your distributor, i had similar problems, changed regulator, fuel pump, car still would stall or hard start. it turned out to be my distributor. i will repeat, this is a problem with the villager, they go bad quick.
Fuel ressure regulator may be bad.
its not in the manifold it should be on your fuel rail
Do a fuel pressure test
Disconnect the vacumm line at the throttle body. If fuel is spurting from the vacumm line then the reg is bad.
you have to use a vacuum pump and aply pressure to it and if fuel goes into the regulator then its working.