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Thread: Speedo wire lead

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  1. #1
    Join Date
    Dec 2005
    Location
    Houston,TX
    Posts
    268
    I am trying to wire my autometer speedo but do not know which wire it is on Allens harness. Can anyone chime in and let me know which one it is? Thanks in advance.

    00' Ls1, TSP 228R - 228/228 .588/.588, Yank SST3200, Nelson tune, Nelson wiring harness,
    s&p headers, custom radiator with e-fans,
    91 sub front end with billet grill and bowtie,
    autometer gauges, red and grey tweed interior, dual 2.5" flowmaster super 40, Dmh cut outs, 5"-7" drop,
    air shocks, 20" Intro twisted vistas, gaylords bed cover
    Coming soon: Air ride with an SD raised front crossmember and 6 link canti out back

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    The one with the white tag on it that says "SPEEDO"
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Oct 2005
    Location
    Baton Rouge, LA
    Posts
    997
    Red... what happens if that tag no longer exists?????????????????
    Test-n-Tune (Nov 23, 2008) - 13.65s @ 98mph

  4. #4
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    That's when you fall back on the PCM wiring diagram.

    Go here to check PCM pinouts
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  5. #5
    Join Date
    Dec 2005
    Location
    Houston,TX
    Posts
    268
    Ok I have that so far but the gauge does not work yet. There is an output coming from the gauge, do you know where that goes?

    00' Ls1, TSP 228R - 228/228 .588/.588, Yank SST3200, Nelson tune, Nelson wiring harness,
    s&p headers, custom radiator with e-fans,
    91 sub front end with billet grill and bowtie,
    autometer gauges, red and grey tweed interior, dual 2.5" flowmaster super 40, Dmh cut outs, 5"-7" drop,
    air shocks, 20" Intro twisted vistas, gaylords bed cover
    Coming soon: Air ride with an SD raised front crossmember and 6 link canti out back

  6. #6
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    Do you have the sensor connected on the transmission tailshaft?
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  7. #7
    Join Date
    Dec 2005
    Location
    Houston,TX
    Posts
    268
    Yeah, is the output from the gauge supposed to be tied into the vss?

    00' Ls1, TSP 228R - 228/228 .588/.588, Yank SST3200, Nelson tune, Nelson wiring harness,
    s&p headers, custom radiator with e-fans,
    91 sub front end with billet grill and bowtie,
    autometer gauges, red and grey tweed interior, dual 2.5" flowmaster super 40, Dmh cut outs, 5"-7" drop,
    air shocks, 20" Intro twisted vistas, gaylords bed cover
    Coming soon: Air ride with an SD raised front crossmember and 6 link canti out back

  8. #8
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    From what I have read it is only hooked to the VSS if you are not using a PCM. The PCM needs the input from the VSS for controlling the transmission. If you hooked it up to the VSS you would cut the opposite wire and ground it to the frame.

    What model number speedometer did you buy?
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  9. #9
    Join Date
    Dec 2005
    Location
    Houston,TX
    Posts
    268
    From summit racing I believe it is atm 4489. It is the 5" electrical

    00' Ls1, TSP 228R - 228/228 .588/.588, Yank SST3200, Nelson tune, Nelson wiring harness,
    s&p headers, custom radiator with e-fans,
    91 sub front end with billet grill and bowtie,
    autometer gauges, red and grey tweed interior, dual 2.5" flowmaster super 40, Dmh cut outs, 5"-7" drop,
    air shocks, 20" Intro twisted vistas, gaylords bed cover
    Coming soon: Air ride with an SD raised front crossmember and 6 link canti out back

  10. #10
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    I think Sprayed99 has that type of speedometer. If he checks in here maybe he'll have an answer for you. I can't remember if 1BADC10 has that style speedometer or not.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

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