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Shift Light Install, easy questions

This is a discussion on Shift Light Install, easy questions within the General Help forums, part of the LSx Technical Help Section category; Not sure where this belongs, as there are a few questions I have for this install. I purchased a dual ...

  1. #1
    Electrical Engineer KMdef9's Avatar
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    Shift Light Install, easy questions

    Not sure where this belongs, as there are a few questions I have for this install. I purchased a dual shift light, launch light and shift light combo. It has 4 wires to hook up, ground [black], + [red], VSS (vehicle speed sensor) [white] and tach output [green].

    My first question is how easy is it to remove the vent direction blade assembly for the heat/ac vents? I messed with it for a few and didn't want to stress it too hard. Is there a trick to it? I know it's a popular place for people to place gauges and I'm hoping to hide my shift light behind one of them.

    2nd(ish), which is sad to say I dont know, where is the PCM located? How many wire harnesses are hooked up to it? This is where the Tach output is located correct? Is it still the red connector, PIN 10, white wire (courtesy Hi-Po gauge install thread) for my '01?

    3rd(ish), The instructions for the hook up for the white wire, are to connect to "the vehicle speed signal (VSS) output from the ECU." Digging through the Haynes repair manual, in the wiring diagram sections, I found "VSS SIG OUT" from the PCM to "instrument cluster system" colored "DRK GRN/WHT". Would this be the correct one, since it's not from the ECU? There are 4 other DRK GRN/WHT wires on the same page of the Haynes manual, so when the manual has wires coming out of the PCM, is it making a generalization for the PCM, as it has several wiring harness? Or are they some what organized in the manual? Anyone have an idea which wire harness this is apart of?

    Any/all help is greatly appreciated, I'm hoping to do a write up of it afterwords as well. Thanks ahead of time.

  2. #2
    TerribleTed TerribleTed's Avatar
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    2000 Chevy Camaro Z28

    The engine compartment CPU MP unit is located (looking from the front of the car to the rear) in the left side corner,,,its a gray white box with I believe 2 main large connectors,,,

    Find the white wire,,.,its the tach single wire,.,.run a wire connected from this down and thru the fire wall thru a rubber chunk that reveals a hole in the firewall.,,,then route the wire up to where u need it,,use yur head,,

    thats about it,,other then providing gound and power conections,,

  3. #3
    TerribleTed TerribleTed's Avatar
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    Red
    2000 Chevy Camaro Z28

    shoot,,,i think that its the colored wire you mentioned,,,not the pure white one,,

    I used a pure white wire for the extension,,,dark green and white is the tach wire,,splice into it

  4. #4
    Electrical Engineer KMdef9's Avatar
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    Thanks for the help. I'm hoping to take a look at it this weekend.

    Upper left hand under the hood is the PCM?

  5. #5
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    2000 Trans Am

    I did a write up the other day for this. Hope this helps you out alot.

    http://www.flickr.com/photos/redwate...923846/detail/

  6. #6
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    Hope This Helps. The only difference should be your Vss Wire I would think.

    Shift Light Install

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