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Thread: L77 swap no spark

  1. #1
    Potential Tuner
    Join Date
    Sep 2018
    Posts
    2

    L77 swap no spark

    Members please,
    We are in the final stage and just wanna have this setup running. L77 and 6l80 pulled from a 2012 caprice.

    Solved
    Last edited by ColdCoffee; 09-24-2018 at 02:14 PM.

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,564
    I'm not on the right computer to view the tune but if you disabled both the VATS drop downs under the OS tab, then did a write entire that should have disabled it. Only a write entire will work, write calibration won't.
    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.

  3. #3
    Potential Tuner
    Join Date
    Feb 2019
    Posts
    6
    Hi there,
    I'm completting same sort of project,
    seem to be having same issues as you,
    ive checked vats etc all disabled.
    can i asked what you do to over come the issue?
    thanks
    regards
    Paul

  4. #4
    bump, having similar issues. Seems fuel is working, but i cant seem to confirm spark.