# Adding AEM wideband to CAN network-ECUMaster Black **URL:** \ **Category:** EMU BLACK / CLASSIC\ **Created:** [July 20, 2025, 8:38pm UTC](https://community.ecumaster.com/t/adding-aem-wideband-to-can-network-ecumaster-black/4093 "2025-07-20T20:38:42Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![r0bman89](https://avatars.discourse-cdn.com/v4/letter/r/a3d4f5/32.png) [@r0bman89](https://community.ecumaster.com/u/r0bman89)\ **Post date:** [July 20, 2025, 8:38pm UTC](https://community.ecumaster.com/t/adding-aem-wideband-to-can-network-ecumaster-black/4093/1 "2025-07-20T20:38:42Z")
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! ![Untitled2](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/a/a0e2af1fd984592b54505cab727dbc539cc098fe.png) ![Untitled](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/7/7d91b71b6d5f81dd44015d66ebbf121952f40a31.png) ---
**Author:** ![Greg](https://avatars.discourse-cdn.com/v4/letter/g/71c47a/32.png) [@Greg](https://community.ecumaster.com/u/Greg)\ **Post date:** [July 21, 2025, 5:39am UTC](https://community.ecumaster.com/t/adding-aem-wideband-to-can-network-ecumaster-black/4093/2 "2025-07-21T05:39:26Z")
According your settings you are transmitting message not recieving.. ---
**Author:** ![Sujaemon](https://avatars.discourse-cdn.com/v4/letter/s/6bbea6/32.png) [@Sujaemon](https://community.ecumaster.com/u/Sujaemon)\ **Post date:** [July 21, 2025, 5:47am UTC](https://community.ecumaster.com/t/adding-aem-wideband-to-can-network-ecumaster-black/4093/3 "2025-07-21T05:47:07Z")
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. ---
**Author:** ![r0bman89](https://avatars.discourse-cdn.com/v4/letter/r/a3d4f5/32.png) [@r0bman89](https://community.ecumaster.com/u/r0bman89)\ **Post date:** [July 21, 2025, 12:53pm UTC](https://community.ecumaster.com/t/adding-aem-wideband-to-can-network-ecumaster-black/4093/4 "2025-07-21T12:53:50Z")
Yes, that was another problem I was having. There is no option to receive lambda values. ---
**Author:** ![r0bman89](https://avatars.discourse-cdn.com/v4/letter/r/a3d4f5/32.png) [@r0bman89](https://community.ecumaster.com/u/r0bman89)\ **Post date:** [July 21, 2025, 12:54pm UTC](https://community.ecumaster.com/t/adding-aem-wideband-to-can-network-ecumaster-black/4093/5 "2025-07-21T12:54:39Z")
Thank you, I’ll try 4 / 39! ---
**Author:** ![Sujaemon](https://avatars.discourse-cdn.com/v4/letter/s/6bbea6/32.png) [@Sujaemon](https://community.ecumaster.com/u/Sujaemon)\ **Post date:** [July 21, 2025, 1:27pm UTC](https://community.ecumaster.com/t/adding-aem-wideband-to-can-network-ecumaster-black/4093/6 "2025-07-21T13:27:05Z")
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. ![スクリーンショット 2025-07-21 14.48.39](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/f/f414303981beebccb0c8599342c6c3e75cb1cc0f.png) ![スクリーンショット 2025-07-21 14.48.51](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/d/ddd61156704efc8be5a065d249a141038adae21e.png) 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. ---
**Author:** ![r0bman89](https://avatars.discourse-cdn.com/v4/letter/r/a3d4f5/32.png) [@r0bman89](https://community.ecumaster.com/u/r0bman89)\ **Post date:** [July 21, 2025, 2:28pm UTC](https://community.ecumaster.com/t/adding-aem-wideband-to-can-network-ecumaster-black/4093/7 "2025-07-21T14:28:42Z")
Thank you, I will try this once I get the gauge wired up. Appreciate the assistance!