Fuel pump pressure - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

b-juggles · 08-11-2002, 22:57

Hey all,

asking for a mate....

Can a fuel pump off an ea deliver 40psi of fuel to the fuel solenoid from the fuel feed line going to the fuel rail?

Any ideas on how to test this?

not sure why he wants to know ......

thanks,

Brendan

ebxr8240 · 08-11-2002, 23:17

It's all up to the fuel pressure regulator. It actually restricts the fuel going back to tank, which gives you the pressure..Best is after market variable regulators...Std f/p is 38lp I think.. In essence yes..

b-juggles · 08-12-2002, 03:28

anyway to test what it is exactly?

lsd0 · 08-12-2002, 05:22

Tee off a pressure gauge in the fuel delivery line to read fuel pressure direct. Should be 200 to 250 kpa at idle. Clamp hose going into fuel rail and pressure should rise to at least 400kpa. If pressure does not increase fuel punp is faulty.

b-juggles · 08-12-2002, 16:48

thanks lsd0,

Also he wanted to know what the fuel pressure should be at full throttle as opposed to idle?

thanks again,

Brendan