VDO tach what wires =?
#2
Supreme Member
Join Date: Jul 1999
Location: out of my mind; be back in 5 minutes....
Posts: 1,593
Likes: 0
Received 3 Likes
on
2 Posts
Car: 1989 Firebird Formula
Engine: Internal Combustion
Transmission: Completed
Axle/Gears: ones that turn.
Strictly a guess on the number and color of the wires, but there usually are red, black, white, and green wires coming from the tach.
The black goes to chassis ground; the red to a switched (key off) power source; the white splices into the dash lights to vary the brightness; and the green hooks up to the negative side of the ignition coil.
Hope this helps....
Pete
------------------------------
Pete's Place
HiOutput Tech Page
<a href="http://www.hioutput.com/pete/garage/83SC/83sc.html" TARGET=_blank><IMG SRC="http://www.hioutput.com/pics/SC.gif" TITLE="Pete's 83 SC" border="1"></a>
My 83 SC...(originally V6) 206,500 mile LG4/5-speed from an 84 Z28, 3.42 one-tire-fryer, T-tops, PW, PH, boxed LCA's, Hedman Hedders and y-pipe, Dynomax cat-back, .420" lift cam, custom air induction .....best ET is 14.935@94.14</P>
</P>Success means you got up one more time than you fell....
The black goes to chassis ground; the red to a switched (key off) power source; the white splices into the dash lights to vary the brightness; and the green hooks up to the negative side of the ignition coil.
Hope this helps....
Pete
------------------------------
Pete's Place
HiOutput Tech Page
<a href="http://www.hioutput.com/pete/garage/83SC/83sc.html" TARGET=_blank><IMG SRC="http://www.hioutput.com/pics/SC.gif" TITLE="Pete's 83 SC" border="1"></a>
My 83 SC...(originally V6) 206,500 mile LG4/5-speed from an 84 Z28, 3.42 one-tire-fryer, T-tops, PW, PH, boxed LCA's, Hedman Hedders and y-pipe, Dynomax cat-back, .420" lift cam, custom air induction .....best ET is 14.935@94.14</P>
</P>Success means you got up one more time than you fell....
#3
The white is the white wire off your coil for the tach lead, black is ground, red ignition or any hot in run source. th green is for your interior lights so its lighted at night. if you dont have a tach now just take off the white wire leaving your coil.
Thread
Thread Starter
Forum
Replies
Last Post
eightsixseven
Tech / General Engine
1
08-14-2015 03:09 PM