I posted this in the engine tuning section as well, but I figured it would be good to ask you guys since there is a large knowledge pool in here and someone likely has some experience with this sensor.
I need to do some data logs for TRM to revise my tune, and I need to tap into the analog 5v signal from my AEM UEGO wideband O2 sensor (white wire). The problem is, when I check the signal voltage with a DMM, it gives me about 0.8v. It jumps around a little, but regardless of if I am max rich or max lean, it doesn't change much. I am using a clean chassis ground source for my other lead. Anyone have experience with this, or an explanation as to why I am not getting a 5v signal?
Could it be because the signal is changing so fast and it is taking an average? I am using a high quality fluke multimeter.
Last edited by manneurex; 05-08-2019 at 08:54 PM.
What's the part number of the controller?
Check the user manual. The white wire might be a 0-1v output to stimulate a narrowband sensor. Check for an orange wire that should be your 0-5v analog output.
What does it read with the sensor unplugged?
It is an AEM 30-4110
The user manual states that the white wire is 0-5v analog signal. This corresponds with the directions that came with it.
https://www.aemelectronics.com/files...GO%20Gauge.pdf
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I will definitely have to check that when I get home. I think it is supposed to read like 2.38v per the manual.
Last edited by manneurex; 05-08-2019 at 09:22 PM.
There's a little dial to turn to configure the output on those. Page 12 is what you need.
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