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Thread: 03 dsp5 problem

  1. #1
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    Default 03 dsp5 problem

    i made a dsp5 tune for a 03 lb7 recently an am having trouble with the switch the voltages change as they should when i utrn the knob but when i logged it to check voltages and tune position the volts were fine like i said but it came up with non dsp on numbers one and two and then 3 was dsp1 and 4 was dsp2 then 5 jumps back and fourth between dsp3 and dsp4 i just cant get it figured out ive changed the voltages to what they logged out to an it did nothing

  2. #2
    Lifetime Member THEFERMANATOR's Avatar
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    I had one do this to me before. I lowered teh voltage down .5 volts for each and it worked afterwards.
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
    DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

  3. #3
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    I just tried it and it helped with #5 on the switch it stopped changing but it was still non dsp, non dsp,dsp1,dsp2,dsp3

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    Lifetime Member dansdieselp's Avatar
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    Default 03 dsp5 problem

    Are your dsp5 wires spliced by chance? If they are and butt connectors were used cut them out and solder the connections.
    Dan's Diesel Performance
    www.dansdieselperformance.com

  5. #5
    Lifetime Member THEFERMANATOR's Avatar
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    What values do you have in for the switch voltages now?
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
    DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

  6. #6
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    ok i played with the voltages an i took dsp three all the way to 2.8 volts and it still interfiered with dsp four at .5 volts now my voltages are at
    non dsp-5v
    dsp one-4.00v
    dsp two-3.40v
    dsp three-2.30v
    dsp four-.50v

    and when on dsp4 it still slightly changes between dsp3 and dsp4 but is on dsp4 the majority of the time

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