Fuel Pressure Goes to 0

[mmarlett]

Hello Forum,

Is it normal for the fuel pressure to to drop to 0 psi when the vehicle is not running?

I reviewed other threads that stated this same concern and they stated the issue could come from an injector leaking down into a cylinder, fuel leak around the rubber seal, bad fuel regulator, or bad fuel pump.

It loses the system pressure about 30 minutes after the vehicle is shut off. It does not blow smoke upon start up and does not have fuel leaking around the injector seals in the intake.

Within the past 18 months, the vehicle received new injectors from TT, a new fuel pump and fuel pressure regulator from Full Throttle.

 

[WSLN 6]

As long as it's not instant, I wouldn't be too concerned. Make sure that it keeps up at WOT by using a second hose/gauge taped to the windshield.

 

[mmarlett]

Great! It does not seem to be an issue when running.

I will not worry about it.

Thanks
Matt