Ford Ranger - Bad fuel pump diagnostic P0171 PT2

2005 Ford Ranger 4cyl 2.3L
After the fuel pump was changed the fuel pressure came up higher than ever and remained when the key was off. All is looking good for now, the customer will drive it for a couple weeks and see if the engine light come back with the P0171 code, but with starting right away and higher pressure, i am going to call this one done.
Thanks For looking

[@sokker80ii]

Now I need someone to let me borrow his fuel pressure tester

[@reints74]

Great info. Thanks

[@JPsLawn]

ok i got one ...i got a 2.3 03 with the same code.. fuel pressure is 65 steady and vacuum is 20 steady..idles a little rough and throws code...drives fine...new plugs wires and coil pack that stupid plug in the intake popped out and i jb welded it back in and got rid of the other codes but cant get rid of this one....please help

[@skulledmonte84]

i got and 88 ranger with 2.9 so did you change the pump in the tank or one near the frame ?

[@usivio980]

What brand of fuel pump did u use.. thanks

[@sledhead78]

How many miles on it?

[@samtu78]

So did the PO171 code come back?

[@arich181]

will it also bring up a p0174 code? i have a 98 and it keeps bringing up this code p0171 and p0174 ive done o2 changes, checked my injectors.... fuel pressure is on the low side

[@Torrontogosh84]

Don't know if you've got this figured out yet, but yes, p0174 is a lean code for bank 2, p0171 is a lean code for bank 1. I'm assuming you have a v6 or something other than a 4 cylinder engine.

[@arich181]

it was the damn fuel pump going bad. smh

[@juantoledo8595]

so 65 to 70 is a good pressure for the 2.3 motor??

[@userANAKIN]

Juan Toledo Haynes repair manual says it should be 60-65 for all 2001 and later engines.

[@MichaelGriffis]

I have 1997 Ford Ranger 2.3 L . I'm getting 3.9 PSI. Still not starting. One website shows it to be between 35 and 45 psi. Which one is it? troubleshootmyvehicle.com/ford/2.3L/how-to-test-the-fuel-pump-2

[@userANAKIN]

Michael Griffis Haynes repair manual says
1997 and earlier
Key on, engine off 35-45 psi.
At idle
With vacuum hose connected 25-35psi
With vacuum hose disconnected 35-45psi

[@userANAKIN]

3.9 psi is very low. Time for a new fuel pump and filter.