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Thread: bad gas mileage after cat-delete Taurus 2013

  1. #1
    Potential Tuner
    Join Date
    Nov 2018
    Posts
    3

    Unhappy bad gas mileage after cat-delete Taurus 2013

    hi HPTuners this is my first post

    I have 2013 Taurus Limited 3.5L V6 naturally aspirated engine, I emptied may cats its legal in my country and tuned like below

    Under Engine>General>O2 Sensors>Rear Config: Change to None.
    Under Engine>General>O2 Sensors>FAOSC: Choose disable.
    Under Engine>General>)O2 Sensors>02 Heaters>Heaters: Under Column Axis S2, change values from 1 to 0 in both Bank 1 and Bank 2.

    cat temp control -》disable
    Flange temp control -》disable
    02 sens temp control -》disable

    Engine diag:
    O2 mil, O2 test -》disable
    Catalyst mil, catalyst test -》disable

    DTC:
    P420 -》No Error Reported
    P430 -》No Error Reported

    after above changes my mileage decrease average 4 MPG I was thinking increase in mileage because old cats was semi-clogged

    Today I checked with VCM scanner and my OL fuel status not ready and LTFT and STFT no data shown and there is no AFR what is the problem
    Last edited by Hasan; 1 Week Ago at 05:46 AM.

  2. #2
    Potential Tuner
    Join Date
    Nov 2018
    Posts
    3
    btw CL O2 sensor temp : 350c unchanged
    and Long Term Fuel Trims : enabled unchanged

    cl.jpg