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Type: Posts; User: RobZL1

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    I believe it has to do with the algorithm used to...

    I believe it has to do with the algorithm used to trigger a knock sensor fault code. Used to be 12 or something on older stuff, then GM changed the calculation and it's 2 or 3 on newer stuff.
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    Log airflow mode and it should say MAF Failed or...

    Log airflow mode and it should say MAF Failed or similar.
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    Wow. Just wow. I'm out. I should have never...

    Wow. Just wow. I'm out. I should have never jumped in this pool. You win, big guy!
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    Ironic you find it necessary to waste your breath...

    Ironic you find it necessary to waste your breath telling me that, but whatever. It's cool- it's just the internet. Have a great one! (Oh, and I also find you irrelevant, since only 2 of your 8...
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    FWIW, I think you'll find your attitude and...

    FWIW, I think you'll find your attitude and approach is in the minority here. Best wishes with your tune, and if you want to solicit help and feedback, you'll get more responses if you lose the...
  6. Thread: MAF only

    by RobZL1
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    135

    .....and the habitual thread-starter award goes...

    .....and the habitual thread-starter award goes to.....(drum roll).....
    ........
    ........
    geneass!!

    Come on up here and get your award!!



    Just messing with you, man, but in all...
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    see this thread ...

    see this thread

    https://forum.hptuners.com/showthread.php?65222-gmpp-ls3-high-idle
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    I just meant that I didn't want trims to be...

    I just meant that I didn't want trims to be adding fuel if I went WOT at a higher ITT.

    Regarding leaning it out, there's a middle point. Zeros in the table will lean it out and the trims will...
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    I believe you need to populate all of the VE...

    I believe you need to populate all of the VE tables in the 2 bar with the same data (no real experience there- I'm sure Ben can tell you the proper method). I also think the axes might be...
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    I'm not sure what you mean by "include the...

    I'm not sure what you mean by "include the original graph math in the filter math."

    All you need to do is put the filter criteria in the function box- see attached photo. Here's the one I use for...
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    Just zero out ALL of the prediction coefficients...

    Just zero out ALL of the prediction coefficients (unless you are mostly stock). EDIT- predictions coefficients were really screwing with my WOT fueling. Once I zero'd ALL of the tables, it became...
  12. Thread: SD tuning

    by RobZL1
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    Try to hit different cells in as much of a...

    Try to hit different cells in as much of a steady-state condition as possible, then set up relevant filters in your histogram. Example of the filters I use to get repeatable data:

    1) Fuel Trim...
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    Thanks for the in-depth explanation. I'll give...

    Thanks for the in-depth explanation. I'll give the 7 and 1 settings a try and see if it works. If so, I might go ahead and pick up a 30-0310 and give you a shout. Many thanks!
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    Wait, so I can buy a 30-0310 inline unit, reflash...

    Wait, so I can buy a 30-0310 inline unit, reflash it, and use it with the obdII interface (just like the 30-0334 I have but without the gauge)?! That would be a nice way to get a second wideband to...
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    It helps to filter data on IVT above a certain...

    It helps to filter data on IVT above a certain temp, coolant and/or oil temp above a threshold, and injector tip temp within a range. Also can filter for throttle change below a certain threshold...
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    physical modifications to the car, or only...

    physical modifications to the car, or only software modifications to the tune?
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    I just re-read your original post- you likely...

    I just re-read your original post- you likely need to add to base running airflow as well if it lasts for more than initial startup, or if it has hunting issues when you come to a stop. Since it's a...
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    Sounds like you need to add to startup airflow as...

    Sounds like you need to add to startup airflow as a first guess. Add about 5% a day to that table and see if it improves over a few mornings. Or copy an ls9 or ls3 table and likely work down from...
  19. https://forum.hptuners.com/showthread.php?66837-Ri...

    https://forum.hptuners.com/showthread.php?66837-Rich-After-Flash-Injector-Tip-Temperature
  20. I'd bet tuning the injector tip temperature will...

    I'd bet tuning the injector tip temperature will fix you guys' ambient-temperature-related fueling swings... especially with those 1150cc injectors, Dzz88. If you tuned in the hot, 110 degree...
  21. Just out of curiosity, try zero-ing everything...

    Just out of curiosity, try zero-ing everything under the prediction coefficients heading on the airflow/dynamic tab. My weird lean issue wasn't presenting exactly the same way as yours, but killing...
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    Awesome!! I laughed harder than I probably...

    Awesome!! I laughed harder than I probably should have at this one. Good stuff.
  23. You can click the axis in VVE editor and change...

    You can click the axis in VVE editor and change it.
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    Let me ask the obvious questions: did you change...

    Let me ask the obvious questions: did you change your injector data to match the 1050's?

    Was the tune MAF-only before the new round of mods, or had the VVE been previously tuned?
  25. Sort of. In the driveability area, I just paste...

    Sort of. In the driveability area, I just paste in the error data from the scanner then blend any odd areas either by hand or with the built in functions. In the boost areas and also above 4000rpm,...
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