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How to log afr via Aem Uego and evo scan?

 
Old Jul 19, 2017, 09:16 PM
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How to log afr via Aem Uego and evo scan?

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Whats up yall looking to log afr via a aem uego and evoscan 2.9.

Ive read a few threads on here but all are un conclusive also out dated.

Ive read about a serial to usb plug but the threads are from 2008.

Dont wana waste time or money if it aint gonna work.

I live near a frys so looking to build it with frys equipment. Or is there a better way to log afr now in 2017? Thanks.
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Old Jul 28, 2017, 12:22 AM
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What i have done --

Connect White wire from AEM UEGO to pin 73 or pin 75 of the ecu.

Start logging, ull see data populate - Adjust formula to match wideband with logged AFR.
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Old Jul 28, 2017, 12:27 AM
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Old Jul 28, 2017, 07:40 AM
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Thanks mines5

I actually made a serial to usb adapter. Works well.
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Old Jul 29, 2017, 08:56 PM
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I just connected all the AEM wires to the rear O2 socket. Since the rear O2 is powered by the MPI circuit, the AEM doesnt reset while cranking which is a huge bonus. Not to mention wiring is a lot simpler since all the wires are at the same place. I did not want to snip the connector from rear O2 so just used pins for now.



I had to adjust the formula a but so that it read the same as AFR guage. Dont know why mine was so off.

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Old Jul 29, 2017, 09:04 PM
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Originally Posted by jingalalahoe View Post
I just connected all the AEM wires to the rear O2 socket. Since the rear O2 is powered by the MPI circuit, the AEM doesnt reset while cranking which is a huge bonus. Not to mention wiring is a lot simpler since all the wires are at the same place. I did not want to snip the connector from rear O2 so just used pins for now.



I had to adjust the formula a but so that it read the same as AFR guage. Dont know why mine was so off.

I made the serial cable
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