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Thread: afr correction reading incorrect in datalog

  1. #1
    Advanced Tuner
    Join Date
    Dec 2012
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    235

    afr correction reading incorrect in datalog

    First time working with hptuners, I'm familiar with AEM, nistune and honda platforms, but this is for sure different. The problem I'm having is in the vcm scanner, my air fuel correction is saying -94%. On my ngk afx input in the scanner is reading correctly at around .93 lambda. So I'm only 7% rich rather than 94%. I'm assuming a channel is incorrect or wrong input to that afr correction histogram. Have any of you ran into this? Or know what I have set up incorrectly? Or perhaps I need to have lambda error as pid rather than a/f?
    Last edited by h2.4; 06-12-2014 at 08:53 PM.

  2. #2
    Advanced Tuner
    Join Date
    Dec 2012
    Posts
    235
    Ok, so I'm finding out I have to have common input to the channel. No lambda input into air fuel tables. Of course that makes sense. I have tried some of the commanded lambda and lambda error pid's that some people have put up, but neither of the two I tried worked with the 04 GTO that I'm working on. Is there any supported pid's for this ecm?

  3. #3
    Advanced Tuner
    Join Date
    Jun 2012
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    225
    Put up a log so people can look and tell you what you are missing. Also put up your config.