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Thread: Histogram Will Not Work

  1. #1

    Histogram Will Not Work

    Any tips on getting histogram issues resolved? I only get a reading in the 1.8 section of the MAP kPa.

    Any help will me much appriciated!

  2. #2
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    What exactly are you trying to capture...a multiple column and row "graph"? Can you post a screen shot of the graph set-up and what it displays?

  3. #3
    Quote Originally Posted by Homer View Post
    What exactly are you trying to capture...a multiple column and row "graph"? Can you post a screen shot of the graph set-up and what it displays?
    I want a histogram so I can dial in my VE/FT's and validate AFR/Lamda with with my Wideband. The Wideband didn't record anything and the other table just pulled data in at 1.8.
    Attached Images Attached Images

  4. #4
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    Channel PIDs need to match Histo PIDs.....

  5. #5
    Quote Originally Posted by Mag0842 View Post
    Channel PIDs need to match Histo PIDs.....
    Thank you... I doubled checked that, still no luck.

  6. #6
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    I think you want Pratio and not MAP. Remember at idle MAP is about 40kPa you are trying to capture way below that.
    VE table.JPG

    Most 1 bar MAP sensors (they only read from vacuum to atmosphere) have a measurement range of ~15 kpa (vacuum) to 105 kpa (atmosphere).
    Last edited by Homer; 07-15-2020 at 02:21 PM.

  7. #7
    Quote Originally Posted by Homer View Post
    I think you want Pratio and not MAP. Remember at idle MAP is about 40kPa you are trying to capture way below that.
    VE table.JPG

    Most 1 bar MAP sensors (they only read from vacuum to atmosphere) have a measurement range of ~15 kpa (vacuum) to 105 kpa (atmosphere).
    Don't I feel stupid... That has to be it... Thank you!

    Now I just have to setup the math, I figured that would be available in the list.

  8. #8
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    You should be able to select pressure ratio as one of the channels and then graph it so no need for math.

  9. #9
    Found it! Thanks agan... I need to stop overthinking this.. Just a little intimidated by the pcm configuration.

  10. #10
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    Don't be too hard on yourself HP tuners can be overwhelming if this is your first time tuning. What I did was to play with VCM scanner for a couple of weeks just to get familiar with how to set things up. I have HP tuners for well over a year and I still feel like a noobie. BTW are you the same McCloud from ChallengerTalk?

  11. #11
    Quote Originally Posted by Homer View Post
    Don't be too hard on yourself HP tuners can be overwhelming if this is your first time tuning. What I did was to play with VCM scanner for a couple of weeks just to get familiar with how to set things up. I have HP tuners for well over a year and I still feel like a noobie. BTW are you the same McCloud from ChallengerTalk?
    Thank you, appriate the encouragement.. I still have a few classes left in a tuning course I'm going through. They are gong into HP Tuners now and going through a few different PCMs, unfortunetly Dodge isn't one of them but it should still help seeing all of the different PCMs.

    Yes, same McCloud and I assume you are ChallyTatum?

  12. #12
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    Quote Originally Posted by McCloud View Post
    Yes, same McCloud and I assume you are ChallyTatum?
    Yes but here I feel more like Homer.

  13. #13
    Quote Originally Posted by Homer View Post
    Yes but here I feel more like Homer.
    LOL.. alright Homer it is! Homer Tuning LLC. .. kind of has a ring to it.

  14. #14
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    Quote Originally Posted by Homer View Post
    Yes but here I feel more like Homer.
    Simpson or from the Iliad?
    If in doubt, multiply everything by 1.1.

  15. #15
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    Quote Originally Posted by spoolboy View Post
    Simpson or from the Iliad?
    I don't think it matters as neither one probably can tune a dodge.
    Last edited by Homer; 07-16-2020 at 12:37 PM.