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Thread: LC1 Histogram logging

  1. #41
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    Thank you Joe. I got fed up with the Analog foudn 2 cables cut them and made a serial cable and finally got some logging.

    Yes this was taken last night and is extremely lean for some reason. I will be tinkering more. I will look over the VE tuning pdf and put this in open loop and get started on it. where is this Calc.Vet thread under?

  2. #42
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    Here is my CalcW02ben, just looks like Lambda values to me.

    Click image for larger version. 

Name:	calc ben.jpg 
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ID:	14148

    So i just copy with lables this calc ben file and paste and multiply to my VE map?

  3. #43
    Joe (Moderator) joecar's Avatar
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  4. #44
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by FreshDA9 View Post
    Here is my CalcW02ben, just looks like Lambda values to me.

    Click image for larger version. 

Name:	calc ben.jpg 
Views:	222 
Size:	345.3 KB 
ID:	14148

    So i just copy with lables this calc ben file and paste and multiply to my VE map?
    CALC.WO2BEN is defined as GM.EQIVRATIO x EXT.WO2LAM1

    i.e. it is the wideband lambda correction of commanded fuel.


    If you were running from MAF, then you would make a MAF-like map of WO2BEN and paste-multiply that into the B5001 MAF table [ and the side effect is that CALC.VET is the calculated VE table ]...

    [ note that the VE can be explicitly disabled by setting B0120 to zero, or you could note that the transient filter removes data during transient airflow... but note that the PCM uses the VE during transient airflow, so any VE contribution is filtered out even if B0120 is left stock at 4000... lol, there's a few subtleties going on here ]


    If you were running from VE, then yes you would do what you said using your VE-like map (but you would have had to disable the MAF by failing it) [ and the side effect here is that CALC.MAFT is the calculated MAF table ].


    More info, carefully read post #29 here: Summary-Notes

  5. #45
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    Joe thank you. I have a lot of reading to do now. It looks as if I really need to go over my PIDs more as per "New Twist on CALC" write up!!!

    Give me some time and I will report back after doing this reading and trying it first hand.

    Thank you guys

  6. #46
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    Refer to post #29 in the Summary Notes as you read, it decodes/relates some of the concepts.

  7. #47
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    Will do, just went through and made my Calc.VET PIDs and also have my filters set up. I noticed the maf pids were "X'd" out. I tried to click on them to see the other PIDs needed but the option was grayed out.

  8. #48
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    Pids other than CALC.xxx may have More Info greyed out.


    To eliminate the red X's, do this:
    - if you're disconnected from vehicle, then enter your VIN (File->Enter VIN) and select your controller (File->Select Contoller).
    - if you're connected to vehicle, then validate pids (Info->Validate Pids).

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