fuel pump maximum output pressure is 64-85 psi
however the actual operating spec with fuel pressure regulator vacuum disconnected is 34-40 psi.
what's the pis of the 1990 v6 isuzu pickup fuel pump
Four cylinder is 15 psi. Six cylinder is 40 psi.
Mechanical fuel pump will develop about 2 psi.
Mechanical fuel pump will develop about 2 psi.
Fuel pump pressure depends on which fuel system the car has. If your car has a carburetor then the fuel pressure should be 9 - 13 psi. If your car is fuel injected then the fuel pressure should be about 45 psi.
43 psi
40 psi
41 to 47 psi
60 to 66 psi, engine off, fuel pump running.
3 psi
15 psi
You will need a fuel pressure guage to check the fuel pump. The pump operates at 13 psi.