30-37 PSI if it is non-turbo
carburetor.
36.4 psi
I'm pretty sure it should be around 36 psi.
prob a vacume leak
Carb. 12-17 psi
fuel filter may need to be replaced or the fuel pump is going out. check all of the fuel lines for moisture. wooden clothes pins work best for checking the lines
I have a 1979 280zx also and just changed it it is located near the gas tank under the car in the passenger side
inside the tank
Good! Save gas!
The fuel pump is located next to the tank behind the right rear tire.
The fuel pump pressure sensor monitors the fuel pressure of the vehicle.
Inside the gas tank.