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Thread: O2 voltage logs but doesn't show up in scan and tune chart

  1. #1
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    Default O2 voltage logs but doesn't show up in scan and tune chart

    Need some help please.
    I have been logging for a few weeks now, and really enjoy using the program. So much to learn though.
    The problem I am having is with both narrow band O2 sensors. I can log both sensors mv and information shows up when I open Efiscan V7.5, but when I open the file in scan and tune and try to view it as a chart the information seems to be gone.
    Car is VZ Clubsport, E40 pcm, log file below.
    Thanks.
    Attached Files Attached Files

  2. #2
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    Can someone please help.

  3. #3
    Joe (Moderator) joecar's Avatar
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    They show up on chart...

    you have to first add them to a chart (on corner of chart strip where you want one of the pids, go rightclick->Other PIDS->O2S11-O2SV(mv); on another corner do same for other pid; then do rightclick->Chart Properties and click Save).

  4. #4
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    Thanks for your help joecar.
    I get what you are saying. I have included some sreenshots of what happening though. I can get the o2 pid on the chart but no data appears. I must have something configured wrong. Pictures are from the same file that I posted in the first post.
    Hope the pics help explain what's going on.

    Click image for larger version. 

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    Last edited by Manuel; April 7th, 2015 at 12:52 AM.

  5. #5
    Lifetime Member darcy's Avatar
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    Look at the scale on the chart, it needs to be scaled correctly. In v8, just roll over the pid title and click the little button the looks like to opposing arrows to auto-scale the chart.

  6. #6
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    Thanks darcy, that does not seem to work either, if you look at screenshot 2, the is no data in the o2 pid of v8, however (screenshot 4) when the file is opened v7.5 the o2 values are there.

  7. #7
    Lifetime Member darcy's Avatar
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    It shows as 0 on the data page in v8 because there are 2 sets of data included in eachd pid - the Voltage & the STFT. v7 lists them separately.
    I can plot both the voltage and the STFT from you log in v8.

  8. #8
    Joe (Moderator) joecar's Avatar
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    ( If you can't get it displaying on V8 scantool, use the V7 scantool for now (V8 can't do maps yet) )

    I would log HO2S11/21 (if these are available on your OS) rather than O2S11/21.

  9. #9
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    This is doing my head in darcy. Is there any chance you can take a screen shot of the data page with my log opened.

    And joecar, I tried looking for a download link of V7 but could not find one.

    Thanks.

    Sorry guys, I worked out how to see the data in 7.5 at least, in the chart, still have no idea why it doesn't show up in V8.

    Thanks for helping again.
    Last edited by Manuel; April 8th, 2015 at 12:23 AM.

  10. #10
    Lifetime Member darcy's Avatar
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    All the download links are here: http://www.efilive.com/latest/cat/download-efilive

    Is this what you were looking for?
    Click image for larger version. 

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