# Anyone using the AEM UEGO wideband A/F

**URL:** <https://forums.speedlife.net/t/anyone-using-the-aem-uego-wideband-a-f/19761>\
**Category:** NYSpeed Automotive\
**Created:** [November 5, 2006, 6:37pm UTC](https://forums.speedlife.net/t/anyone-using-the-aem-uego-wideband-a-f/19761 "2006-11-05T18:37:45Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![ezfd](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ezfd/32/7334_2.png) [@ezfd](https://forums.speedlife.net/u/ezfd)\
**Post date:** [November 5, 2006, 6:37pm UTC](https://forums.speedlife.net/t/anyone-using-the-aem-uego-wideband-a-f/19761/1 "2006-11-05T18:37:45Z")

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I need to know which wires are which on the 4 pin power harness, red, black, white and blue.

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**Author:** ![Tunerfreak](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tunerfreak/32/7427_2.png) [@Tunerfreak](https://forums.speedlife.net/u/Tunerfreak)\
**Post date:** [November 5, 2006, 8:00pm UTC](https://forums.speedlife.net/t/anyone-using-the-aem-uego-wideband-a-f/19761/2 "2006-11-05T20:00:13Z")

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Red: 12V Power  
Black: Ground  
White: 0-5V output  
Blue: Serial output

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**Author:** ![ezfd](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ezfd/32/7334_2.png) [@ezfd](https://forums.speedlife.net/u/ezfd)\
**Post date:** [November 5, 2006, 8:22pm UTC](https://forums.speedlife.net/t/anyone-using-the-aem-uego-wideband-a-f/19761/3 "2006-11-05T20:22:50Z")

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so if i’m just using the gauge with the sensor, i just use the power and ground?

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**Author:** ![Tunerfreak](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/tunerfreak/32/7427_2.png) [@Tunerfreak](https://forums.speedlife.net/u/Tunerfreak)\
**Post date:** [November 5, 2006, 8:25pm UTC](https://forums.speedlife.net/t/anyone-using-the-aem-uego-wideband-a-f/19761/4 "2006-11-05T20:25:45Z")

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> [@ezfd](#):
>
> so if i’m just using the gauge with the sensor, i just use the power and ground?

yes

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**Author:** ![Devioustsi](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/devioustsi/32/7406_2.png) [@Devioustsi](https://forums.speedlife.net/u/Devioustsi)\
**Post date:** [November 5, 2006, 8:39pm UTC](https://forums.speedlife.net/t/anyone-using-the-aem-uego-wideband-a-f/19761/5 "2006-11-05T20:39:12Z")

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> [@Tunerfreak](#):
>
> Red: 12V Power  
> Black: Ground  
> White: 0-5V output  
> Blue: Serial output

Correct… but make sure not to hook up the blue to anything unless your running the aem ems.