You need a wiring diagram for that answer.
each vehicle is different.
green
what colour is the wire i use to hock up a tach on a 1989 Chevy 350
at the tach it is white-pink green at coil
white if its tbi
On the 88 jeep the trigger wire at the tach is blue.
At the dist there should be one to power the dist. & one for tach signal. Unplug one & see if car starts or if tach still works. Can't really remember for sure as its been a while lol. My 1972 tach wire is brown and it has a inline fuse from the factory. Your tach wire will be connected to the negative side of your terminal witch is labeled "tach".
there is a white almost tanish looking solid color wire on the group of wires that plug into the guage cluster use a quick connect to connect the signal wire from the tach to the white wire on the guage cluster
IF you have the installation instructions for the tach, it prolly tells you where to attach the tach wire. If not, call the manu. of the tach or search for their website online.
the tach wire is a solid green wire that runs from the dizzy to one of the loom connectors.
hook your green wire from the tach to the white wire from the coil PAC it should be a white and a yellow wire coming from the coil. the tach should have a white wire that will be your light inside the tach a red wire for power and a black for ground.. good luck
where is the tach wire en Toyota tacoma 1999 4 cilinders
Your tach wire color is Gray. And it's located at Coil on passenger side of the engine. This goes for 1997 through 2001.