How easy is it to wire a tach into my car?

Question

I want to put a tach into my car because its a manual and it doesnt have one, has anyone wired a tach before? How is it done and how easy is it?

I have a 99 toyota corolla, with no tach in the speedometer cluster

Answer 1

With out knowing your car, its hard to tell you how.. Here's the gen idea though.

Aftermarket tachs has
Red wire = 12 volts switch
Black wire = chassis ground
White wire = to your lights, so the light in tach will turn on when you turn your lights on
Green wire = neg side of your coil.

Now if you have a DIS type ing. system, coil packs, etc then you will need an after market adapter to hook tach up to those types of ing. systems

Answer 2

It has been years. The instructions will come with the tach. It only requires a couple of leads, one to the ignition and one to the dash lights and the ground. You won't have any trouble.