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Thread: Wideband o2 channels not boradcast in 2009 G37

  1. #1
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    Wideband o2 channels not broadcast in 2009 G37

    Hello, I have been tuning my 09 g37 and everything seems to work well except for not being able to see data from the two "sensor 1's" on each bank. The only afr channel I am able to see is Bank 1 sensor 2, which I believe to be a narrow band going by voltage. In the vcm scanner all the other afr channels are greyed out or not there depending on whether I have a log open or not. Is this the expected behavior for this vehicle or am I missing something?

    vcm scanner 1.PNG

    vcm scanner 2.PNG

    Also, What is the Equivalence Ratio Commanded? I'm seeing 1.16 lambda at WOT 6700 rpm and that seems odd given my target lambda there is .86

    TIA

    Steve
    Last edited by steve54; 03-28-2025 at 10:49 AM.

  2. #2
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    Ok for the Equiv Ratio Commanded, seems like maybe a units error since when I convert my target afr table to phi it matches what is supposed to be the ERC in lambda (.86 lambda = 1.164 phi=12.6 gas afrs).... Any HPT people want to chime in?

  3. #3
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    Solution- Updated to the beta version of vcm suite and now WB Eq 1 works
    Last edited by steve54; 03-29-2025 at 12:55 PM.