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Thread: need help with swap 4.3-5.3

  1. 02-03-2008 02:25 PM #101
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    banker099
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    ok...found it!!!...it has something to do with the small plug on the neutral safety switch.....which the wires are

    blue plug

    32
    BLK/WHT
    771
    Transmission Range Switch Signal A

    34
    WHT
    776
    Transmission Range Switch Signal P

    72
    YEL
    772
    Transmission Range Switch Signal B

    red plug

    62
    GRA
    773
    Transmission Range Switch Signal C


    ....and with 3 different harnesses and 2 different neutral safety switches and still having the same prob in every case,which makes me think it could be a problem with the tune...what do you guys think?

    with everything plugged in besides this plug the temp gauge doesnt jump around and seems to be reading right.

    i cant get anyone at nelsons to return my calls....i guess i can put my ecu in a buddies truck and see if his does the same thing...will this work?

    what will happen if i leave this unplugged and try to drive it?
    ↓↓↓click pic to go to garage↓↓↓

    408, WCCHL92s, nelson tune,4L80e 3600 Circle D,
    Intro Radicalli's
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  2. 02-04-2008 10:07 AM #102
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    banker099
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    nobody has any suggestions?
    ↓↓↓click pic to go to garage↓↓↓

    408, WCCHL92s, nelson tune,4L80e 3600 Circle D,
    Intro Radicalli's
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  3. 02-04-2008 06:35 PM #103
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    banker099
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    ok...put the ecu in my buddies truck and guess what...same thing happened to his truck...i guess i could have got a bad ecu...it does happen. i just hope nelsons is kind enough to send me another!

    im so glad i can quit searching for shorts...cuz evidently there arent any and its a computer prob!


    im so happy right now...my truck might not be fixed but at least i know what the problem is!!!!
    ↓↓↓click pic to go to garage↓↓↓

    408, WCCHL92s, nelson tune,4L80e 3600 Circle D,
    Intro Radicalli's
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  4. 02-04-2008 07:10 PM #104
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    Wtfan18
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    sweet bud glad to hear it!
    09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,
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  5. 02-04-2008 08:32 PM #105
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    ducky
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    it could be something small/overlooked in the tune, or its just not registering right.. have you put your buddies stock pcm into yours at all?
    1951 3100
    1984 C10
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  6. 02-04-2008 08:52 PM #106
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    banker099
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    no...i didnt even try it knowing from past experience with the VATS
    ↓↓↓click pic to go to garage↓↓↓

    408, WCCHL92s, nelson tune,4L80e 3600 Circle D,
    Intro Radicalli's
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  7. 02-04-2008 09:17 PM #107
    RedHeartbeat
    RedHeartbeat is offline WTH JUST HAPPENED?
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    Allen will take care of you. PM/Call them and let them know. Melissa will fix it up for you quickly. Call and leave a message with them and I'm sure they'll get a PCM out to you ASAP.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
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  8. 02-06-2008 12:37 PM #108
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    ok...should be getting a new pcm today and hopefully all probs will be solved.
    ↓↓↓click pic to go to garage↓↓↓

    408, WCCHL92s, nelson tune,4L80e 3600 Circle D,
    Intro Radicalli's
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  9. 02-07-2008 04:39 PM #109
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    installed the new pcm today...all probs solved!!!!.....yippedy skippedy do dah!!!!
    ↓↓↓click pic to go to garage↓↓↓

    408, WCCHL92s, nelson tune,4L80e 3600 Circle D,
    Intro Radicalli's
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  10. 02-07-2008 04:45 PM #110
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    Wtfan18
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    damn bro now you get to drive the hell out of that beast! have fun!
    09 CREWCAB LTZ SILVERADO, 6.2, SIX SPEED, CAI,
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