tach install
 

hey my friend got a 98 civic and he bought a autometer shiftlight tach and it has 4 wires power ground and light source to turn the on and off whats the other one its a green wire

Re: tach install
 

The green is the tach signal wire. How else do you think it measures your RPM?

Re: tach install
 

tach signal. connect to the appropriate source on your coil or splice into your harness.

Re: tach install
 

Oh BTW its the blue wire with the silver dots under the dash. There are 2 like that. One is for the air bag, one is for the tach.

Re: tach install
 

ok thanks guys thats what i thought it was the blue and white theres a black and yellow 2 and the blue and white is the negitive then thanks guys

Re: tach install
 

well i hooked it up to the blue and white and it doesnt work on the harness next to the distrubutor but there are 2 big wires next to like 10 small ones a blue and a black are those the negitive and positive for the disturbutor

Re: tach install
 

wow, just wow ::)

Re: tach install
 

EASIEST thing you can do is to wire it to your cluster. Powder blue wire with silver dots on it. Splice.

I have no idea why people ---- around with their coils and dizzys and O2 wiring. :S

You need to make sure all your power and ground wire are good too or it won't work. :6

Re: tach install
 

your coil negative terminal. or vss, not sure which wire.
but what are you doing with a tv screen tach? didn't honda already install one? the saying goes if your car was meant to go fast they would have installed a tach. are you revving that high to need a 5 inch tach. and oh yeah the famous my friend this and my friend that, we all know its yours.

Re: tach install
 

Isn't that what I said? ;)