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AEM Wideband Cantoo...
 

AEM Wideband Cantool Help Needed

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(@hansl)
Posts: 41
Member
Topic starter
 

Has anyone successfully added an AEM wideband using canbus and the Cantool plugin? I am receiving data packets, but can't get the gauge to read anything but zero. Attached is the info from AEM and how the settings are in Yourdyno. I have a temp gauge that is working great with the cantool, so I must have something wrong yet.


 
Posted : 12/09/2026 2:47 pm
(@bendd)
Posts: 69
Member
 

@hansl , can you please tell me which version of UnaVision you are using and if you're also using the version of CanTool it installs auotmaticaly, or a different version?

Thank you!


 
Posted : 15/10/2026 7:00 am
(@hansl)
Posts: 41
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Topic starter
 

Posted by: @cmadmin
↑

Try Byte offset 0, which is for Lambda. Byte offset 2 is for Oxygen concentration. 

Also, make sure all channel names globally are unique and make sure to restart the Run window after changing channel names. 

 

Those suggestions didn't work, unfortunately.  My tech thinks it may be an issue with the "signed/unsigned" since we can't specify in the Cantool Plugin.

 


 
Posted : 17/09/2026 2:56 pm
(@cmadmin)
Posts: 187
Member Admin
 

Try Byte offset 0, which is for Lambda. Byte offset 2 is for Oxygen concentration. 

Also, make sure all channel names globally are unique and make sure to restart the Run window after changing channel names. 


 
Posted : 14/09/2026 11:56 am
(@hansl)
Posts: 41
Member
Topic starter
 

Showing it's getting packets...


 
Posted : 12/09/2026 2:48 pm
(@hansl)
Posts: 41
Member
Topic starter
 

Cantool/Yourdyno settings


 
Posted : 12/09/2026 2:47 pm
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