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EFILive and AEM UEGO showing different readings?

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Old 08-06-2011, 07:05 PM
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Default EFILive and AEM UEGO showing different readings?

Wideband is connected, scanner is finally working correctly, custom PID is made and AFR is showing up on EFILive ..only issue is Live shows a leaner ratio at idle(haven't driven yet so probably showing leaner across the board) than the AEM gauge. Is there a conversion formula I have to do somewhere? Any help is appreciated!

Last edited by Tan327; 08-06-2011 at 07:26 PM.
Old 08-07-2011, 03:05 PM
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Thats because of ground offsets. If you use a wideband with a serial out then it will plug straight in the V2 and you wont have to deal with that. They will always match.
Old 08-07-2011, 06:12 PM
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It's a known problem with the aem uego gauge. Search the megasquirt forums for some common offsets you can put in to get it reading true. What's dangerous is the gauge always reads correct but the output is off.




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