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Thread: ls4 tuning

  1. #1
    Potential Tuner
    Join Date
    Jun 2009
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    4

    ls4 tuning

    working on a 2005 monte with a thumper cam. i have done a bunch of f bodies and trucks but nothing that has only one o2 sensor, lol. i tried a search but to no avail, how can i stop the nonexistant o2 sensor from pulling fuel to ve tune? i appreciate any help and if there is a link i missed let me know, short data log attached to show what i'm askingkirks ss.hpl

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
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    13,564
    It's not pulling fuel because it does not even exist, it is just a number the computer is throwing out if you try to log it.

    Remove that those channels from the table display when tuning an LS4. Past that you can put the vehicle into speed density by failing the MAF sensor and start working on the VVE tables.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.