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green signal wire goes to the negative side of coil, not the positive.
On your tach you probably have a ground(black),power(red), signal(green) and illumination(yellow?) wires. The signal wire splices into the positive side of the coil. The rest of the wires are pretty self explanatory. Make sure you have a solid ground and power. The illumination wire can be hooked into the headlight switch so it goes on with your lights. Tim
The statement above is true for hooking up a tach. I just installed one in my 87 gmc s15. the trucks are set up from the factory to come with one, so you will find a wire located in the wiring harness that has a hookup for your tach. This is so you dont have to mess with the distributer set up. This may save you some time.
Wiki User
∙ 8y ago
Wiki User
∙ 8y agoIf it has a distributor, follow the directions that came with the tach. The coil will be mounted on the left valve cover- just follow the coil wire from the distributor. If the vehicle has a DIS setup, you won't be able to use that tach as there is no distributor.
Wiki User
∙ 15y agoyou have to tap into the coil wires the negative wire on the coil plug.
Wiki User
∙ 14y agoi put one in my 91 s10 with a 2.5 A. the tac that i had came with the directons on what wire to splice in to. i think it was the white one on the coil
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What is the correct timing for a 1986 Chevy Camaro 28L?
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Here you go. Copy & paste into your browser. http://autorepair.about.com/library/firing_orders/bl-fo-10962.htm
What are some causes and remedies for an 86 Jeep Cherokee with a 28L V6 with a very high CO output?
First, check your air filter and O2 sensor. Both probably need to be replaced. If the HC is up, change the plugs and wires too. If the vehicle is carburated you probably don't have an O2 sensor.
