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Thread: ecm lambdapro

  1. #1
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    ecm lambdapro

    Does anyone have the formula to get the lambdapro to data log in lambda? This one has a range of .55-1.75L.

  2. #2
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    Fwiw 0v=.55 and 5v=1.75 lambda. It's also 8 to 25.5 afr. I thought I had the transform written down, but that's all I could find in my owner's manual.

    I would be willing to bet that Banish could tell you the offset formula. I don't remember but he may even do a walk through using it in his older vid???
    Last edited by GHuggins; 5 Days Ago at 11:31 PM.

  3. #3
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    Is this not just a simple linear mx+b calculation?
    Lambda=.24v+.55
    Last edited by gtstorey; 5 Days Ago at 10:53 AM.

  4. #4
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    Quote Originally Posted by 04silverado6.0 View Post
    Does anyone have the formula to get the lambdapro to data log in lambda? This one has a range of .55-1.75L.
    IF you search by my name I have an excel sheet posted in here to figure this out for you.
    Tuner at PCMofnc.com
    Email tuning!!!, Mail order, Dyno tuning, Performance Parts, Electric Fan Kits, 4l80e swap harnesses, 6l80 -> 4l80e conversion harnesses, Installs

  5. #5
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    I contacted ECM and was given the same formula with the slope .24. It took me a moment to figure out but you use the inverse of the slope, 1/.24. The same slope if you swap the x and y. My bad for not realizing this is 7th grade math.
    Attached Files Attached Files

  6. #6
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    Sorry I didn't still have the formula for mine and couldn't help, but you got her done I lost mine nearly 8 years ago when hpt did one of its crashes and I lost all of my math parameters. I had also switched to using cheaper AEM's by then and now I just require customers to have them installed instead of me having to worry about it, so mine's been in the case for a long time now. Just went through the crash bs again a month ago. Wonderful hpt.... At least ECM was able to get you the numbers you needed.
    2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93
    2011 Vette Cam Only Internal Mod in stock LS3 -- YSI @ 18psi - 811rwhp on 93 / 926rwhp on E60 & 1008rwhp with a 50 shot of nitrous all through a 6L80

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  7. #7
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    I keep all my files including math on several flash drives. Hopefully this forum helps the next guy.