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Thread: problems with CALC.VET

  1. #1
    Lifetime Member Tinbender59's Avatar
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    Default problems with CALC.VET

    I am curently trying to get my truck tuned, but. the "data" for calculated VE, not corrected, - Calc.ven is reading "0" what am I doing wrong,
    here are the pids that I am using, should be everything that the tutorial said to use??? calcvet.pid

  2. #2
    Lifetime Member Tinbender59's Avatar
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    However, LTFT's are running -1.8 to -4.3 TP and Load are running 26% to 45% pretty much neck and neck. Timing was 26 degrees on up hill to 36 degrees on the flat. Around 70 mph @ 2100 rpm the faster the better.

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    is calc.DAT putting out data? Some OSs don't support that PID and you have to create a CALC.B4901 too for CALC.DAT to give valid data....which in turn is required for CALC.VEN.

    post the datalog and calc_pids.txt

  4. #4
    Lifetime Member Tinbender59's Avatar
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    Ok will do

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    Lifetime Member Tinbender59's Avatar
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    here is my current tune and a 30-ish mile scan. On the previous iteration, I did open up the timing, Was limited to 16 degrees, and added 5% to VE across the board. this round, opened VE another 3%. However it does look like O2 2-1 is laying down on me, I have one ordered it will be here Monday. I also have the trans shifting way early, for MPG assistance, she has the torque to handle it. when I go into "tow haul" everything is as stock tow haul for pulling.

    she does run real "clean" smooth and strong, I'd just like to get it correct.

    Edit: I just looked at my pids, they were all Imperial, switched them to metric??? maybe the problem??
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    Last edited by Tinbender59; March 29th, 2019 at 07:47 AM.

  6. #6
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    Can you post your calc_pids.txt ?

    Located at C:\Users\YourUser\Documents\EFILive\V7.5\User Configuration

  7. #7
    Lifetime Member Tinbender59's Avatar
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    yes sir, here you are. thank you

    it should be the one from the calc thread
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    Looks like it's working fine for me, so long as you choose VEN in g*K/kPa units (NOT percentage). As the guide talks about, using the default units is preferred and makes it a lot less likely to screw something up as well. Just change the tune software to display default units in the settings.

    See screenshot below, you can see it's working using default units, but showing zero for percentage units. I think you need to set your engine displacement in the Scan software if you want to use percentage units.. never done it myself personally.

    Click image for larger version. 

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  9. #9
    Lifetime Member Tinbender59's Avatar
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    Cool, i say that everything was in imperial and wondered about it. Thank you again

  10. #10
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    Units wont matter-- the program can convert easily between all of them and will use whatever units are defined in calc_pids.txt. Glad it was easy fix

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