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Thread: Injector Flow rate changes and AE

  1. #1
    Fuel Injected!
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    Injector Flow rate changes and AE

    I was wondering what happens to AE when I increase the fuel pressure.
    When increasing fuel pressure I usually compensate by changing the injector flow rate to match. Is AE fuel inrichment outside what the injector flow rate setting adjusts.
    So is it correct to say an increase in fuel pressure will result in more AE fuel, in proportion to the increase in fuel pressure regardless of the injector flow rate setting?
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  2. #2
    Fuel Injected!
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    Quote Originally Posted by Kitch View Post
    I was wondering what happens to AE when I increase the fuel pressure.
    When increasing fuel pressure I usually compensate by changing the injector flow rate to match. Is AE fuel inrichment outside what the injector flow rate setting adjusts.
    So is it correct to say an increase in fuel pressure will result in more AE fuel, in proportion to the increase in fuel pressure regardless of the injector flow rate setting?
    Since AE as well as startup/cranking fuel is all based off pulsewidth alone it will not be altered by the injector size scaler.

  3. #3
    Fuel Injected!
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    Thanks for the reply, and the confirmation.
    My AE Wideband readings are a little lean but I was about to bump the fuel pressure up a couple of PSI, so I'll just leave the AE adjustments alone at the moment and see what the fuel pressure change does.

  4. #4
    Fuel Injected! brian617's Avatar
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    Imagine if the pulse width remains the same, and the only change is fuel pressure, then the amount of fuel injected in that PW increases or decrease respectively with fuel pressure change.
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