P0171 & p0174 Codes on 3.0 Ranger

[00ranger3.0]

Hello Everyone i'm new to the forum.

My Truck info
2000
Ranger
3.0 4x4
Auto Trans

I just picked up my Ranger and love it. I've done a ton of work that the truck needed as it sat nearly a year before i bought it.

The issues ive been having from the beginning of buying was P0171 & P0174 codes.

stuff ive replaced so far some not related to the codes.

Upper and lower intake manifold gaskets.
Valve Cover Gaskets.
IAC and gasket.
Cleaned MAF.
Egr tube was busted off at exhaust so i replaced that. (didn't replace EGR)
Cleaned the Throttle body out.
Plugs & wires (motorcraft)
Brakes (ALL)
Hubs
T-stat
Flushed Fluids
(More but forgetting)

After replacing all (evap Equip) i still noticed a very high idle

Did a smoke test and found 1 major Vacuum Leak which was insanely weird.

Someone had drilled several small holes in the brake booster Pressure relief valve. and it was sucking in air like crazy. No Idea Why someone would do that?

Did another smoke test as well as sprayed Brake Cleaner everywhere and there isnt anymore Vac leaks.

As of now engine is running great idle is around 900 Rpm which is good enough for me. much better then 1600 with the Vac Leak.

I have obd2 reader but its not a very advanced one.

Not Sure if it helps but

The P0174 Data is:

Fuel Sys 1-CL
Fuel Sys 2-NA
Calc Load %-64.71
ECT (C)-77
STFT B1 %-6.25
LTFT B1 %-25.00
STFT B2 %-8.59
LTFT B2 %-25.00
Eng RPM-2427
Veh Speed-57

No data on the P0171 Right now as i reset and it didn't come back on yet.

Any Recommendations would be great.

 

[00ranger3.0]

Also PCV Valve and hose have been replaced

 

[00ranger3.0]

DPFE Sensor also replaced. No Change. Still getting p0171 & p0174

 

[94RoadkillRanger]

Too much air could also mean, not enough fuel (pump, filter, strainer, injectors, regulator, fuel line, pump wiring). Start with a fuel pressure gauge on the rail. Sounds like you enjoy the work part, so you could clean all the injectors as well.