Troubleshooting a 2009 Toyota Corolla with p0171 code

Here I diagnose a Toyota Corolla with P0171 : System lean bank 1 code. I show how to troubleshoot this code. These test methods can be used on any year, make, model vehicle.

[@rainierhabervo7380]

Thank you so much for the technical help, that’s exactly what’s going on on my 2009 toyota corolla

[@DuaneDonaldson]

As you can see, LTFT does not go back to zero like STFT does, it takes time for the different fuel cells to correct at different RPM ranges and you have not driven the car yet. Your initial DIAG of no vacuum leak based on LTFT was expecting a change back near zero that takes more time to correct while STFT showed a vacuum leak right away as part of the problem.
I am a scope guy, I would have scoped the pump right after seeing the low pressure then I would have checked the waveform again at 3K RPM to watch the FP speed up a lot with a loss of pressure on the gauge, bad pump.
I can tell you don't watch Mansoors Channel from Pakistan, he does what I call the Mansoor Tune Up, pulls the pump unit, the entire induction system, injectors to bench flush, plugs and coils, removes the TB to clean and intake manifold, O2s to clean and plugs to clean and recycle if not too old and CAT to wash with a chemical cleaner. After cleaning and flushing and a new/used OEM FP motor only, all back together for one low price and maybe a few guys working on it together. Might get a valve adjustment, might get the fuel filter back flushed, might get new plugs and filters, will get the MAF cleaned and maybe I forgot something? Oh yes, will get the fuel pump pick-up sock and entire assy disassembled and cleaned by hand with gas. I pray the EPA doesn't come knocking your door down, the internet is forever Bro. Thank you for the all-around explanations for the young troops, cheers.