Lupe

ok so not so long ago i found out my fressure drops to about 8 psi at higher rpms so i decided to clean my tank cuz it was kinda dirty and changed the fuel filter and tried it again and still nothing is there annything else i should check? it started when i left it parked for about a month and then decided to start driving it again thanks in advance

NismoPick

Fuel pressure regulator.

Lupe

I changed one over from my 81 and still bogs way down and pops from runing so lean

FricFrac

DId you blow out the lines and the fuel rail? What if something fouled the regulator and is still in the system. When you said you cleaned the tank did you coat it? Make sure the injectors aren't fouled either. Sounds like there is a blockage between your fuel pump and your gauge. Are you getting full pressure at the pump?

Lupe

ui Blew them out whit compresed air ill check how much pressure i get in the back tonight and i didnt get it coated it was just dirty from old gas

Lupe

I Checked The pressure At The Outlet on The Fuel Pump And Still Drop So Its Probably Just That My Pump Is Clogged Or Weak