When I turn the key on my 77zt MS-II, you can hear the fuel relay click and the fuel pump winds for a few seconds, pressure climbs to just shy of 40lbs, then the fuel pump cuts off and the fuel remains at around 35lbs. All good so far, right? As soon as I turn the ign swithch off the fuel pressure drops instantly to "0", nada. If I leave the ign on, the fuel pressure drops very slow and seems to stop around 30lbs. I have a factory turbo fuel pressure regulator and a 95lbs rated fuel pump. I have 0 to 60lbs fuel pressure gauge on the retun side of the fuel rail, before the FPR
I have an after market fuel rail and new stock flow (not factory) injectors
Fuel Damper? FPR?