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Thread: Calc.VET: correcting MAF and calculating VE (in single log)

  1. #521
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    Quote Originally Posted by joecar View Post
    You may also have to set B0120 to 400 rpm or less to disable the VE... usually the transient filter removes any frames where VE has contributed to the airmass computation.
    Hey Joe!

    Thanks again for the very good information! I hope I wasn't asking questions that have already been answered, it gets tough trying to read through so many posts. I have taken into account everything you've posted. Now I'm just waiting to hear back why my flashscan cable won't upload a tune to the car! Ugh, if its not one thing, its another. I'll post back up once I get some more results.

    Adrian

  2. #522
    Joe (Moderator) joecar's Avatar
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    Hey Adrian, no worries...

    This thread has a summary of stuff: Summary-Notes

  3. #523
    Junior Member ecir45's Avatar
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    First time tuner here. Used calc_pids from first post. All went well except CALC.VEN showed invalid.

    More info showed:

    Calculated VE, not corrected {CALC.VEN}
    Expression:
    % = {SAE.MAF.gps}*{CALC.DAT.K}/{SAE.MAP.kPa}/{SAE.RPM}*3445.2/displacement()
    is NOT valid because:
    Required parameter {CALC.DAT.K}, at position 27 is not selected.
    PID value cannot be determined because
    the following error would occur:
    Expression not valid: Required parameter {CALC.DAT.K}, at position 27 is not selected.
    Calculated VE, not corrected {CALC.VEN}
    Expression:
    g*K/kPa = {SAE.MAF.gps}*{CALC.DAT.K}/{SAE.MAP.kPa}/{SAE.RPM}*15
    is NOT valid because:
    PID value cannot be determined because
    the following error would occur:
    Expression not compiled

    Added CALC.DAT pid to make the CALC.VEN valid.

    Click image for larger version. 

Name:	pid.PNG 
Views:	244 
Size:	28.3 KB 
ID:	16508

    My OS is 12212156. Using Innovate LC-2 serial wideband.

    Did I use the right calc_pid text file.
    '92 K1500 Blazer, L31, NV3500, TPI, 14 bolt 3.42, 0411, EFI Live
    '99 SCSB Stepside Silverado, 5.3, 4L60e, 10 bolt 3.42, 0411, EFI Live

  4. #524
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    You've selected ECT in Metric and IAT in Imperial... they need to be on the same scale. Change IAT to Metric and add CALC.DAT back to the list (it's greyed out on your list). See if that helps. Also select CALC.DAT in Metric

  5. #525
    Junior Member ecir45's Avatar
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    had CALC.DAT not selected to show in pic above that it makes CALC.VEN invalid.

    So CALC.DAT is needed but not shown in pid pic in first post?
    '92 K1500 Blazer, L31, NV3500, TPI, 14 bolt 3.42, 0411, EFI Live
    '99 SCSB Stepside Silverado, 5.3, 4L60e, 10 bolt 3.42, 0411, EFI Live

  6. #526
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    CALC.DAT is shown in your list but the little icon is greyed out... so it's not selected.

  7. #527
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by ecir45 View Post
    ...
    So CALC.DAT is needed but not shown in pid pic in first post?
    Ok, I added a comment to post #1 to include CALC.DAT.

  8. #528
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by ecir45 View Post
    First time tuner here. Used calc_pids from first post. All went well except CALC.VEN showed invalid.

    More info showed:

    Calculated VE, not corrected {CALC.VEN}
    Expression:
    % = {SAE.MAF.gps}*{CALC.DAT.K}/{SAE.MAP.kPa}/{SAE.RPM}*3445.2/displacement()
    is NOT valid because:
    Required parameter {CALC.DAT.K}, at position 27 is not selected.
    PID value cannot be determined because
    the following error would occur:
    Expression not valid: Required parameter {CALC.DAT.K}, at position 27 is not selected.
    Calculated VE, not corrected {CALC.VEN}
    Expression:
    g*K/kPa = {SAE.MAF.gps}*{CALC.DAT.K}/{SAE.MAP.kPa}/{SAE.RPM}*15
    is NOT valid because:
    PID value cannot be determined because
    the following error would occur:
    Expression not compiled

    Added CALC.DAT pid to make the CALC.VEN valid.

    Click image for larger version. 

Name:	pid.PNG 
Views:	244 
Size:	28.3 KB 
ID:	16508

    My OS is 12212156. Using Innovate LC-2 serial wideband.

    Did I use the right calc_pid text file.
    More Info shows a clue as to what the problem may be.

    I now added a comment to post #1 to include CALC.DAT.

  9. #529
    Junior Member ecir45's Avatar
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    hopefully this will help when you get to the pdf. Thanks

    Click image for larger version. 

Name:	CALCVET.png 
Views:	9249 
Size:	18.2 KB 
ID:	16509
    '92 K1500 Blazer, L31, NV3500, TPI, 14 bolt 3.42, 0411, EFI Live
    '99 SCSB Stepside Silverado, 5.3, 4L60e, 10 bolt 3.42, 0411, EFI Live

  10. #530
    Joe (Moderator) joecar's Avatar
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    Quote Originally Posted by ecir45 View Post
    hopefully this will help when you get to the pdf. Thanks

    Click image for larger version. 

Name:	CALCVET.png 
Views:	9249 
Size:	18.2 KB 
ID:	16509
    I pasted your pic into post #1 to replace the original pic, thanks

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