Results 1 to 6 of 6

Thread: LS1 MAFless

  1. #1
    Tuner in Training
    Join Date
    Aug 2020
    Posts
    11

    LS1 MAFless

    Hi, would somebody be able to help with a MAFless tune on this file AND removing the immobiliser please, helping a friend put a LS1 into a TVR
    thanks
    2003 Gen3 LS1 5.7 from Holden Commodore
    operating system 12225074
    Attached Files Attached Files

  2. #2
    Senior Tuner
    Join Date
    Mar 2011
    Location
    Ripley, MS
    Posts
    1,865
    Here ya go.

    nevlsoriKWMod.hpt

  3. #3
    Senior Tuner TheMechanic's Avatar
    Join Date
    Jan 2014
    Location
    SoCal
    Posts
    1,561
    Quote Originally Posted by kevin87turbot View Post
    Here ya go.

    nevlsoriKWMod.hpt
    Hi Kevin. Can you explain the specific reasoning for the change in SES and DTC from original to your tune? Trying to wrap my head around what they really do when you change a specific code to different parameters. Thanks in advance

  4. #4
    Senior Tuner
    Join Date
    Mar 2011
    Location
    Ripley, MS
    Posts
    1,865
    The PCM needs to fail the MAF immediately in order to go to SD mode. Check the DTC's P0101, 102, and 103 to MIL on first Error to fail it.

  5. #5
    Senior Tuner TheMechanic's Avatar
    Join Date
    Jan 2014
    Location
    SoCal
    Posts
    1,561
    Quote Originally Posted by kevin87turbot View Post
    The PCM needs to fail the MAF immediately in order to go to SD mode. Check the DTC's P0101, 102, and 103 to MIL on first Error to fail it.
    Are you causing the MAF failure through a software change or disconnection? Or both?

  6. #6
    Senior Tuner Ben Charles's Avatar
    Join Date
    Aug 2009
    Location
    Calibrating
    Posts
    3,373
    Software... you can leave MAF plugged in if you like...

    Email Tunes, [email protected]
    96 TA Blown/Stroked, 4L80E/Fab 9
    15 C7 A8 H/C 2.3 Blower/PI
    14 Gen 5 Viper
    Custom Mid Engine chassis, AKA GalBen C