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Discussion Starter · #1 ·
I need to know where my VSS and Tach wires are to install a aftermarket heads up display unit.

Can someone tell me which wires I will need?
 

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Discussion Starter · #3 ·
Ok, I need a better place to get to it, what colors will it be when it is in the main wiring harness?

Also, what color(s) is the tach wire?
 

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ok..what car ya got??..year ...R/T or GTS??
 

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vss is white/orange and tach is gray/lite blue...what else ya need???
 

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Discussion Starter · #7 ·
Thanks a lot for the help!

I am at work right now, where is the best place to get to the harness and attach to thoes two wires? I need to run the wire to my dash for a heads up display unit.

BTW : The HUD is from http://www.defi-shop.com/ VSD BASIS, great little unit. Had one on my Z28 and was mid install on my Cobra before I traded it in.
 

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take the cover off the PCM at the left under the hoods of the car near your left foot and and you will see the pcm right there...you can drill a hole there or route it however ya want...
 

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Discussion Starter · #9 ·
Ok I found them, but how many pulses per mile / crank rev are the VSS and tach wires?
 
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