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Thread: How do I change calculation for AEM 30-4910 wideband?

  1. #1
    Potential Tuner
    Join Date
    Nov 2018
    Posts
    4

    How do I change calculation for AEM 30-4910 wideband?

    How do I add calculation for AEM 30-4910 wideband?

    From AEM manual: (pg 15. https://www.aemelectronics.com/files...ons%28c%29.pdf)

    AFR (Gas) = (2.375 * Volts) + 7.3125

    This is my first time working with HP Tuner. I have watched this video:
    https://www.youtube.com/watch?v=u_LRPb3l1DU

    I am not understanding on how to edit/change the equivalency ratio.

    -Chris

  2. #2
    Potential Tuner
    Join Date
    Nov 2018
    Posts
    4
    I am migrating from SCT, which I was able to provide the exact equation as AEM supplied.

    Within the "Transform" AFM equations are all based on voltage divided by X, the AEM equation is voltage multiplied. I was able to find a workable equation.

    From the AEM manual 4.5v = AFM 18. So using their equation with 4.5v
    * 2.375 * 4.5 + 7.3125 = 18
    I stepped through the math for different AFM and ended up using 'AEM 30-(03x0,2340,5130)':
    * 4.5 / .42105263 + 7.3125 = 18.00000004
    I corrected and used:
    * 4.5 / .42105263 + 7.31249996 = 18