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Thread: OBS chevy LSx wiring

  1. #31
    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,

  2. #32
    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

  3. #33
    Join Date
    Sep 2007
    Location
    Texas
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    5,301
    yea my gas gauge is controlled by the pcm.

  4. #34
    Join Date
    Nov 2007
    Location
    phoenix az
    Posts
    247
    the 98 pcm ?
    1998 chevy 1500 with 6.0/4l80e comp cam, tune, exhaust,

  5. #35
    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

  6. #36
    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,

  7. #37
    Join Date
    Jun 2007
    Location
    maine
    Posts
    1,458
    well all i can say is i hope my stupid A** can figure it out without messing stuff up lol if i can do that ill be extremely happy. cuz i know nothing about all these pins etc..
    09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,

  8. #38
    Join Date
    Oct 2003
    Posts
    473

    Question

    My original purple wire, for the fuel level gauge, coming from the tank sender, is still hooked up as it came from the factory. The fuel level gauge stopped working though. Any ideas? (I did just have to replace the fuel pump, cause I think I burned it out by leaving the key on for a couple days. But the sender & the fuel pump are wired separately, so one should not effect the other.)Do fuel senders go bad? I'm scratching my head on this one.

  9. #39
    Join Date
    May 2004
    Posts
    2,120
    Yes, they are very sensitive to any type rough movement. Check out this link, it's pretty cool. If the wiper is damaged or pulled away or worn from making contact the sender will quit working. Here's a pretty cool link that shows how a sender works. Just click on the play button.

    Howstuffworks "How Fuel Gauges Work"


    97 GMC, 2002 LS6.

    1991 GMC Syclone #1428

  10. #40
    Join Date
    Oct 2003
    Posts
    473
    Quote Originally Posted by NITROUS View Post
    Yes, they are very sensitive to any type rough movement. Check out this link, it's pretty cool. If the wiper is damaged or pulled away or worn from making contact the sender will quit working. Here's a pretty cool link that shows how a sender works. Just click on the play button.

    Howstuffworks "How Fuel Gauges Work"
    Thanks again buddy.

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