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Thread: ANYONE have the secret setup numbers to a 30-4406 AEM boost gauge

  1. #1

    ANYONE have the secret setup numbers to a 30-4406 AEM boost gauge

    I have tried setting/transforming this thing 78 ways from sunday but I can not get it to read correctly in vcm scanner. anyone know the secret calculation. I barely graduated high school so math is not my strong point!

  2. #2
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    have u tried it as transform function: (input / 0.08 ) + -6.25

  3. #3
    I have done the .5 +-6.25 it says to use and it was pretty far off. I will try the .8 but I’ve tried so many I don’t feel like it will work but it’s definitely worth a try. I’ll let you know tonight. Thanks

  4. #4
    well (input / 0.08 ) + -6.25 actually puts the reading at 14.5 through scanner when the actual idle vacuum is 20!!! so I busted the volt meter out and here is what i'm reading on my 0-5 output at 0. 1.66 volts not running gauge at 0, with the truck running at -20 the volt meter reads .92, The scanner is designed to register this info as vacuum and boost correct? I feel like a retard.
    Last edited by jacob3318; 06-17-2020 at 01:23 PM.

  5. #5
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    whats the full range of the gauge 0-50 or is it -30 to 50 ? try this (input/ 0.05) + -40.00 or (input/ 0.0625) + -30.00
    Last edited by 07GTS; 06-18-2020 at 03:23 AM.

  6. #6
    That’s the thing. To look at it on a web page it says from -30 to 35. Then to look up the instructions it says from 0-50. Yet the instructions in the box were completely missing either of this information lol. I’m calling them today.

  7. #7
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    ok if its -30 to 30 then try this (input/0.0667) + -37.5

  8. #8
    Quote Originally Posted by 07GTS View Post
    ok if its -30 to 30 then try this (input/0.0667) + -37.5
    sorry for the delay! I will try it this afternoon as work has been crazy. Thank you so much for taking the time to help. I will keep you posted.