Adding AEM wideband to CAN network-ECUMaster Black

Hi everyone, trying to add my AEM wideband to the ECUMaster CAN network which already has a CAN gauge added to it. I tried the following settings but the program won’t accept a divider smaller than 255, and I need 1000 for it to properly display AFR.

I don’t have the wiring added just yet but programming it all will definitely be the biggest hurdle.

Has anyone successfully done this before? thanks!


According your settings you are transmitting message not recieving..

I also struggled with this when I first set it up.
In EmuBlack, the lambda channel is 1 bit = 0.001 lambda, so you can set it by dividing the received value by 10.
However, when I tried it, simply dividing by 10 caused the data from X-UEGO and the display to be quite different. (The data from EmuBlack and AEM are displayed on RealDash.)
I don’t know why this is, so for now I multiply the data by 4 and divide by 39, which gives me very close numbers.

Yes, that was another problem I was having. There is no option to receive lambda values.

Thank you, I’ll try 4 / 39!

On my vehicle, the CAN ID is set to 181 instead of the default 180 because if it is not 181 it will conflict with other IDs.


First try dividing by 10. That should be the theoretical value.
If there is a big difference in the value, check the X-UEGO display and the display on the PC and adjust accordingly.

I don’t know if this is a specification on the X-UEGO side. I have used the ms3pro and G4X in the past and there was no difference in the values and I was able to use them as is.

Thank you, I will try this once I get the gauge wired up. Appreciate the assistance!