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AEm 30-2301 Non-Linear formula

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Old Sep 19, 2013, 06:53 AM
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AEm 30-2301 Non-Linear formula

I recently hooked up my AEM in-line WB O2 and have it running via pin 75 directly to EvoScan. Reading loooked odd so I started digging around. I found that the signal is non-linear on this model. I found info that other tuning platforms have susessfully logged using polynomial equations:

http://forum.efilive.com/showthread....n-Linear/page3

The equation used is:

((((0.0298)*{EXT.AD1}-0.1826)*{EXT.AD1}+0.4971)*{EXT.AD1}+0.5253)*{EXT.A D1}+8.4433

What is the referance ext.ad1? Is there a way that I can plug this into EvoScan?
Attached Thumbnails AEm 30-2301 Non-Linear formula-afr.jpg  

Last edited by hylomar; Sep 19, 2013 at 09:50 AM.
Old Sep 19, 2013, 10:01 PM
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Originally Posted by hylomar
I recently hooked up my AEM in-line WB O2 and have it running via pin 75 directly to EvoScan. Reading loooked odd so I started digging around. I found that the signal is non-linear on this model. I found info that other tuning platforms have susessfully logged using polynomial equations:

http://forum.efilive.com/showthread....n-Linear/page3

The equation used is:

((((0.0298)*{EXT.AD1}-0.1826)*{EXT.AD1}+0.4971)*{EXT.AD1}+0.5253)*{EXT.A D1}+8.4433

What is the referance ext.ad1? Is there a way that I can plug this into EvoScan?
I'd suggest to PM "evoscan" or send them a mail on their website.
Old Sep 20, 2013, 05:37 AM
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Originally Posted by domyz
I'd suggest to PM "evoscan" or send them a mail on their website.
Already did. Hoping that someone else has had the same problem and solved it or that there is someone smarter that me (not hard) that can make heads or tails out of the code string. I am betting that "evoscan" is busy enough already without my one off problem.
Old Sep 23, 2013, 03:45 PM
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Bump....
Old Sep 24, 2013, 10:32 AM
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I'm guessing EXT.AD1 is the raw value logged by evoscan. So in evoscan you should just replace it with "x"
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