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  1. #1
    Matatan tocullo's Avatar
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    Vtech Tune problem need help!!! Look at this log! Hole shot Bog Down.

    Like some of you know im having a bog down at hole shot with a Vtech tune and 80lb injectors. Here is a log with my CMD and the fuel map that im using from Vtech. Something is wrong with this tune, i think is fueling related. Jonatan please help me 1 year with the same issue is enough!!!!


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  2. #2
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    Looks lean, that will bog down a holeshot.... if I'm looking at the chart right?

  3. #3
    Matatan tocullo's Avatar
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    Some what! but if you notice the lean spots are when i step on the throttle! Look at the TPS..

  4. #4
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    At all the 100% throttle sites I see rich in the high 10s

  5. #5
    Moderator beerdart's Avatar
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    Upload your log file just change the .csv to .doc so we can to a peek.

  6. #6
    Matatan tocullo's Avatar
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    Quote Originally Posted by beerdart View Post
    Upload your log file just change the .csv to .doc so we can to a peek.
    Man in unsure on what how to do this! I can email you the displog file.

  7. #7
    Moderator beerdart's Avatar
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    Set your display file manager options to time interval .025 and re-convert the .display log to .csv.

  8. #8
    Moderator beerdart's Avatar
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    Took a peek and there is not enough data to see whats going on. 90sec and 60 is idle.

  9. #9
    Matatan tocullo's Avatar
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    Quote Originally Posted by beerdart View Post
    Took a peek and there is not enough data to see whats going on. 90sec and 60 is idle.
    I know the log is not long enough, though i can see the times that i step on the throttle when my rpms goes to around 6K the duty cycle is under 20s%. Also the AFR goes extremely lean right after i snap it! Im no expert though!!

  10. #10
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    I had similar problem on throttle stab - going lean at first /~14-15/ then recover. Andy told me /god bless you Andy/ to find all the lean spots in my log which turned out to be throttle stab and manually add fuel to corresponding cells and /I still have to analyze the logs from yesterday/ now I think I am good with throttle stab AFR

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