fuel pump output

[dohcfiend]

what is the fuel pressure in these cars be4 it hits the fpr?

[brian89gp]

roughly 45psi

[dohcfiend]

i am not sure about that. isn't it 45 after the fpr? i am referring to the pressure in the line. it's gotta be at least 55 at the minimum.

[brian89gp]

from the pump to FPR its near 45psi, from the FPR to tank its near 0psi.

[Juglenaut]

The only pressure that is retained is on the inlet line going into the rail and incliding the rail, after the rail it goes back into the tank at less than 4-5 psi.

my fuel rail maintains a psi of 35...and around 50psi on the fuel inlet line.

If the return line has a kink or is plugged then pressures are directly affected coming in from the inlet.

On a full tank pressures can be slightly more.

[dohcfiend]

ok thanx.