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Thread: 3 Bar SD OS ?

  1. #1
    Advanced Tuner
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    3 Bar SD OS ?

    Am I limited to the Low Octane timing table on a 3 Bar OS tune ? Do I still have to fail the MAF ? Thanks

  2. #2
    Tuner
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    Quote Originally Posted by orange ss View Post
    Am I limited to the Low Octane timing table on a 3 Bar OS tune ? Do I still have to fail the MAF ? Thanks
    You should still have the high octane table. Yes, always fail the maf manually by setting the maf fail to 0 and set the dtc's properly.
    2001 Z06 - Blown (Sold )

  3. #3
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    I do have it, but didnt know if it was useable. Thanx for the clarification

  4. #4
    I count sheep in hex...

  5. #5
    Tuner in Training
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    So...I can get a 2 BAR OS that retains the use of the MAF?


    2.5 Bar MAP - Speed Density (E38 ECM - LS2 and other engines)

    This enhancement contains the following features:
    2.5 bar (255 kPa) max MAP sensor support (calibration capability for GM 0-5V linear MAP sensors)
    Rescaled High MAF table supports up to 15400 Hz with 300 Hz resolution, also supports airflow up to 1024 g/sec
    New VE tables with 33 x 33 cell resolution each and configurable MAP and RPM axes (choose your own resolution)
    Charge Temperature based VE multiplier table, configurable axis
    TPS based VE multiplier table, 33 x 17 cells with configurable TPS and RPM axes
    MAP referenced "Boost Enrich" table
    Boost Enrich MAP threshold and hysteresis value
    Both MAF and Speed Density mode supported

  6. #6
    HP Tuners Support
    (foff667)
    Bill@HPTuners's Avatar
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    Do you have an E38 ECM or an LS1? LS1's have a 1 bar SD, 2 bar SD, 3 bar SD & 1 bar maf
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"