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Thread: PFI injection on Ecoboost

  1. #1
    Tuner in Training
    Join Date
    Dec 2020
    Posts
    25

    PFI injection on Ecoboost

    Hello,

    I currently have a Fiesta ST 1.5 200cv, I'm trying to tune E85 + performance increase.
    As fuel system is pretty close to the limit when driving E85, I was wondering how to increase fuel pressure (trying pretty much everything available on HpTuners) in order to keep the good richness.
    As there are port dual injection on that engine, is there a way to command more fuel from the PFI injectors, in order to have more total fuel without increase fuel pump pressure?

    Thank you!

  2. #2
    Tuner in Training
    Join Date
    Jul 2018
    Posts
    33
    In the f150 tunes, the way to command more PFI is Engine>Fuel>general>DI/PI blending. Changing these tables will not request more total fuel on their own, but you can shift more fuel over to port fuel injection.
    fuel pressure tables are under fuel system>fuel pressure.