aem uego wideband/2nd o2 sensor pin out

[linksys42]

Hello, I was wondering where the best power tap and ground point would be for the AEM UEGO wideband it says any 10-18v source with a 10amp fuse but just was wondering where the best source would be? Where did you guys tap and ground yours at? And also was wondering if anyone knew what connector and pin the rear 2nd o2 sensor feeds to at the ecu? Thanks in advance.

 

[tom04841]

I tapped mine into the ECU power wire and grounded it at the ground point next to the ecu. The rear o2 wire is on pin 75

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[linksys42]

I tapped mine into the ECU power wire and grounded it at the ground point next to the ecu. The rear o2 wire is on pin 75

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Are you running the 30-4100 gage type UEGO controller with the built in controller into the gage? Or are you running the single channel wideband UEGO controller module 30-2301? Also are you using a stand alone EMS? Because I have been getting some conflicting info. I have been searching on here dsmtalk and aem’s forum. And some threads say to get the 12v from the battery using a relay and inline 10a fuse, using a switched auxiliary source to power the relay and grounding it back to the battery? And some just say to hook it up to a switched auxiliary source with a 10a fuse (cigarette lighter/radio) and just ground it as close to the gage as possible? And I am having a hard time finding out what the correct way to wire it up is. I just want the gage to read as accurate as possible and im worried about throwing the reading off by the way it is powered/grounded. Have you had any issues with it wired the way you described? Thanks for the help