AEM UEGO Install question

[sike]

This is not advanced, but I have no instructions and I'm having problems getting this thing working, and I did not know where to post it. Anyhow, I just got a UEGO single channel controller and aem gauge from 2 different people and I recieved no instructions with the guage. AEM emailed me the instructions, but they were not helpful and I cannot get it to work. I have 6 wires comming from the controller and 2 sets of wires comming from the gauge. One set with 4 wires and one set with 6 that match the colors comming from the controller. I figured the 4 were for the gauge power/ground/light/etc... but the instructions AEM sent me had me thinking otherwise, it did not mention the set of 4 wires at all or the fact that there were 2 seperate sets of wires. So I wired it up the way the instructions led me to believe was correct and I got no display on the gauge. What is the correct way to wire this thing? Thanks.

 

[splattj]

The guage is supposed to have the controller built in whereas the 10-2301 is supposed to be used sans-gauge with a standalone ECU. The gauge should have two pigtails. One with a connector on it for the sensor and one with 4 wires. The 4 wires are
Red: 12V switched
Black: Chassis grounds
White: 0-5v wideband output for standalone ECUs
Blue: Serial output for RS-232 datalogging

It sounds like you are missing the connector for your sensor. The sensor is a 6 wire sensor. You need to use the connector though, as the sensor has a resistor in it's connector for calibration purposes. Call AEM and see what it will take to get your gauge unit repaired.

The 10-2301 controller should have two pigtails. One with a six wire sensor connector and the other should have 5 wires.

Orange: 0-5v wideband output for standalone ECUs
White: 0-1v narrow band output for use with factory ECU
Brown: Signal ground
Red: 12v Switched power
Black: Battery ground

http://forum.aempower.com/bbs/viewtopic.php?t=4208

 

[sike]

Well the controller is 30-2301 for sure. I believe the gauge was designed to work with the controller and is not the one with built in controller. I plan to use this with megasquirt in the future, but I do not have it yet. I'll try wiring it differently tommorow and see what happens.

 

[sike]

I have another question about this. I'd imagine, but I am unsure, that the narrowband output from this would be more accurate than the output from a standard narrowband o2 sensor, can anyone confirm this? I could probably find it if I searched, I've seen a few posts just looking around that have mentioned this but I don't believe it was confirmed. Also, the 30-2031 that I have has only 2 wire outputs, one to the sensor and one with a 6 pin connector that connectors to another open wire strand. I think the 6 wires from the gauge go to the 6 wires from the controller, and the red from the 4 wire strand is power for both(sensor and controller), black is ground for both, blue is 0-5v ouput, and white is 0-1v narrow band output. signal. I beleive when I get the MS, I will be able to splice the signal if I want to continue to use the gauge.

 

[splattj]

I have another question about this. I'd imagine, but I am unsure, that the narrowband output from this would be more accurate than the output from a standard narrowband o2 sensor, can anyone confirm this? I could probably find it if I searched, I've seen a few posts just looking around that have mentioned this but I don't believe it was confirmed.

The sensor is more accurate than the factory sensor. However, the resolution is still going to be the same since you're taking all the A/F ratio points possible and setting the value to 0-1 instead of 0-5. It will be a much lower resolution than the wideband output.

the 30-2031 that I have has only 2 wire outputs, one to the sensor and one with a 6 pin connector that connectors to another open wire strand. I think the 6 wires from the gauge go to the 6 wires from the controller, and the red from the 4 wire strand is power for both(sensor and controller), black is ground for both, blue is 0-5v ouput, and white is 0-1v narrow band output. signal. I beleive when I get the MS, I will be able to splice the signal if I want to continue to use the gauge.

I guess there is a gauge only option. It's: 30-4113, 30-4123, 30-4213,or 30-4223.
Red= 12v switched power
Black= Chassis Ground
Orange= 0-5v input from controller
Brown= signal ground (connect this to the brown wire on the controller)
White= 0-5v output/passthrough. (connect this to a standalone ECU or other device set to use 0-5v)
Blue= Serial datalogging output.

So you're only going to connect the orange and brown wires together between the two. I'm down in Gaithersburg/Rockville if you need some help with the car. Just PM me.