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Thread: OBS chevy LSx wiring

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  1. #1
    Join Date
    Nov 2007
    Location
    phoenix az
    Posts
    247
    its been awhile but itried bypassing the pcm but noting happened but at the same time sendingunit went out so going to worry about another day

  2. #2
    Join Date
    Jun 2007
    Location
    maine
    Posts
    1,458
    if you guys had to guess how many hours do you think it will take to get my nelson harness all wired in?
    09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,

  3. #3
    Join Date
    Nov 2007
    Location
    phoenix az
    Posts
    247
    shouldn't take to long just lay it out and seperate it then set it on top of the motor and start plugging away. just make sure u dont let let it touch moving or hot parts, id say hour

  4. #4
    Join Date
    Sep 2007
    Location
    Texas
    Posts
    5,301
    yea my gas gauge is controlled by the pcm.

  5. #5
    Join Date
    Nov 2007
    Location
    phoenix az
    Posts
    247
    the 98 pcm ?
    1998 chevy 1500 with 6.0/4l80e comp cam, tune, exhaust,

  6. #6
    Join Date
    May 2004
    Posts
    2,120
    The only reason I can find to use the ppl wire is for the idiot light in the cluster. If anyone can find something different let me know. I wouldn't use the 98 PCM just for this when you can probably use pin 54 on the LSX PCM C2 connector (fuel level sensor). If you like 2 computers use it, I'm not trying to tell anyone not to.


    97 GMC, 2002 LS6.

    1991 GMC Syclone #1428

  7. #7
    Join Date
    Nov 2007
    Location
    phoenix az
    Posts
    247
    thats how my truck is set up right know and soon as i get un lazy im going to do somthing about it
    1998 chevy 1500 with 6.0/4l80e comp cam, tune, exhaust,

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