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Thread: Safety Tip: Please Read Me Before you Write to any PCM/ECM with your Laptop

  1. #41
    Tuner in Training
    Join Date
    May 2016
    Location
    San Jose, CA
    Posts
    31
    Thanks. I installed an isolation transformer after the pure sinusoidal inverter. It's all good. No ground loops.
    - Ken

    2014 Chevy SS, LS3 6.2L, auto, Whipple Supercharged, 8 psi on 91 octane.

  2. #42
    Potential Tuner
    Join Date
    Mar 2018
    Location
    Life long N.j guy but now in p.a
    Posts
    1
    Good to know

  3. #43
    Tuner in Training
    Join Date
    Jul 2020
    Location
    tn
    Posts
    40
    i never ever hook the laptop to anythign but the wall when doing a tune EVER>. secondly use the batter plenty of life to write a tune if its charged
    never use and inverter... they WILL fail at the most inopportune time see Ed above
    for you bench tuners get and isolation tranformer.. do not let your Laptop and pcm power supply get hung on same circuit.

    ask me how i know ? 35 yrs of testing audio electronics (pro, home and mobile) no sense in ever taking a chance some random ground loop is gonna fry your pcm or
    corrupt some random bit in the data stream that fupps up eveything..

    cheers be its just safe not sorry it's just too simple