Lost Fuel Pressure after Sitting

[xr2300]

Is it normal to lose all pressure in the fuel line overnight? Mine does. I noticed this after I installed a walbro inline and a mechanical gauge. The car starts and drives fine and shows 40 psi at idle with the reference line off, and when the car is shut off, the gauge shows pressure in the line. the next day the guage will read 0.

[Stinger]

Yes, it will lose pressure eventually. Some lose pressure within seconds and still run fine.

[xr2300]

Thank you. I thought maybe there was something wrong with the pump.