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Thread: Official NBS 4.3v6 to GEN 3 V8 swap Guide

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  1. #1
    Join Date
    Jan 2012
    Location
    DFW, TEXAS
    Posts
    594
    pics of a engine harness?

  2. #2
    yup

  3. #3
    Join Date
    Jan 2012
    Location
    DFW, TEXAS
    Posts
    594
    Quote Originally Posted by BIG BLOCK 555 View Post
    yup
    now your playing too many games, find a 99-2001 engine harness. It will be red/blue on the ends that plug into the pcm. keep the pcm thats in your truck. (send it to nelsonperformance.com) no more silly questions! if thats too hard, pay someone to do the swap for you

  4. #4
    easy blacstar it's my first swap ,

    i got every thing but there is a problem ( i can't start the engine it's cranking but without really starting )

    i tried reset the pcm so many times so any idea's ?

    i changed spark plugs + new battery + cleaned up intake manifold & injectors ,

    i have 2001 5.3 with harness + PCM i throw away my old engine with pcm in yard for now .. i know if send it to allen it will work like a charm but i live in saudi arabia that mean i have to send to him which will cost me a brand new one :/

  5. #5
    Join Date
    May 2007
    Location
    Medford, OR
    Posts
    142
    Sounds like VATS isnt turned off.

  6. #6
    ^

    can any tuner turn it off ? or can i turn it off ?

  7. #7
    Join Date
    Jan 2012
    Location
    DFW, TEXAS
    Posts
    594

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