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Thread: Enabling flex fuel logic

  1. 12-20-2022 #1
    AustinVW
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    Enabling flex fuel logic

    Goodmorning guys i was just wondering how or if any of you have enabled the flex fuel logic on newer ecoboosts? Trying to enable it for my 2017 Focus ST and i know we have wideband and also tables for inferred alcohol percentage but how do i actually enable the logic? Thank you in advance yall!
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  2. 01-14-2023 #2
    FastCar
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    Some here have done it. Usually there's a switch in the engine settings in the PCM, and the Flex Fuel tables aren't always fully populated in cars that don't ship with that, so you have to watch out for that as well.
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  3. 01-20-2023 #3
    AustinVW
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    Ya i was able to look at another ST file that has the flex fuel switch but mine does not unfortunately thank you for the reply
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