This entirely depends on the vehicle and the type of tach your referring to such as a add on tach or an OEM in dash tach. To explain how to install and OEM tach would take far to long. I would suggest a add on tach that mounts basically where ever you want to mount it. Most of these tachs explain the installation instructions. I personally recommend a tach by Autometer you can view their products on the web at the link below. , EzForJesus
how to install automotive tachometer on a snowmobile
theirs a green wire by distributer that is for the tach
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.
Do you mean an oil pressure gauge? Not tach?
if you mean tach/tachometer you have find an aftermarket tach driver and plug it in where the original tach plugs in
There should be installing instructions with the tach. If not contact the manufacturer.
You need an aftermarket tach adaptor autometer makes a good one
you can install any kind of tach you want to in your car..if you do not have a stock tach then look in your manual for the rmp sensor wire..should be blue or green coming off the distributor...just splice into it...if you have a stock tach you can just splice into the stock tach wires by taking off the dash
pin 48 on the pcm connecter is tach signal connect to your green wire from tach
Does the vehicle already have a tach?no
Instructions should come with the tach. Otherwise, contact the tach manufacturer.
There should be directions with it.