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Old 01-17-2002, 08:48 AM
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Re: How to wire a tach

Quote:
Originally posted by Colin
I have a aftermarket tach that I want to install in my '91 nissan sentra. It has three wires, red, black and green. If someone could tell me where and how to hook up these wires it would be greatly appreciated.
Red = constant 12v source
Black = ground
Green = negative side of coil. In a 91 Sentra I am showing that wire to be green with yellow stripe

There should be a blue wire too, this is for tach illumination. You can either hook this to ignition or parking light wire.
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