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Thread: Wideband reading lean

  1. #1
    Tuner
    Join Date
    Feb 2007
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    Wideband reading lean

    When I am logging AFR error on a wot pull the first few cells after the transition from closed to wot always end up way lean. Is this normal or is there a filter that needs to added to the histogram? I have tried it on several different vehicles, same results.

  2. #2
    Senior Tuner mowton's Avatar
    Join Date
    Mar 2007
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    Florida
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    3,773
    Check the time that the leanness ocurrs in the log. Some is to be expected (milliseconds). You can try increasing the PE Ramp in time to compensate. Post a log and you tune as well as mods

    Ed M
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