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Thread: AFR Error Histogram Won't Populate

  1. #1
    Tuner in Training
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    May 2021
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    AFR Error Histogram Won't Populate

    Hello,
    New to tuning so please bare with me, I came here because I can't seem to find an answer anywhere else and can't seem to figure this out.
    I got my scanner all set up and wideband to one of the external MVPI Pro inputs, its reading accurately and all that good stuff.
    The problem is I put together an AFR Error histogram using AFR, Commanded AFR, RPM and MAP, it tracks the RPM and MAP but no numbers.
    Is there a different PID for using an external wideband?
    What am I missing here?
    Thanks in advance for any guidance.
    P.S. I can provide a scan if that helps.
    Attached Files Attached Files

  2. #2
    Tuning Addict blindsquirrel's Avatar
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    Apr 2017
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    A .hpl logfile is only the channel list and their recorded data; for anyone else to be able to see the same graphs you see and look at how you have it/them configured, you need to also include the .xml file(s) - *.Table.xml for a single graph, or *.Graphs.xml for all of them rolled into one.

  3. #3
    Tuner in Training
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    How do I include/send the XML files?
    My AFR is showing in the channel section, just not the historgram and I'm using the 100 * ([50120] - [50121]) / [50121] AFR error equation if that helps.

  4. #4
    Tuning Addict blindsquirrel's Avatar
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    screenshot.20-06-2021 17.00.34.png

    Save the layout you want to include then attach it here.

  5. #5
    Tuner in Training
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    May 2021
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    Here you go, hopefully I did this right.

    6-20-21 HPT Idle Graphs.Graphs.xml

  6. #6
    Tuner in Training
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    May 2021
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    Got it figured out.