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green wire on aftermarket tachs are the signal wire i belive
The instructions will come with the new tach.
if you mean tach/tachometer you have find an aftermarket tach driver and plug it in where the original tach plugs in
There really isn't one anymore. The instrument in the dash is just a stepper motor, which gets a signal from the PCM. You will need an adapter from a tach manufacturer to hook up any kind of aftermarket gauge.
You need an aftermarket tach adaptor autometer makes a good one
DISCLAIMER: I am not responsible for your actions You need an ECU diagram of your vehicle. Find the correct pin # and find the wire that attaches to it. Use a wire tap and run that wire as the signal wire to your new tach
a factory cluster with a tach will work if installed w/o any other work. and aftermarket tach needs the signal wire from the distributor. look for a blue wire comming from the harness to the right of the master cylinder area. also near the hood prop. tap that wire for signal, then run your wires for power, ground, and illumination.
You would hook to the negative side of the coil. Some HEI distributor caps are marked "tach".
how do you hook up a sunpro super tach 2
you dont use the ecm, you use one of the wires from the second injector, i think its blue
there is a white almost tanish looking solid color wire on the group of wires that plug into the guage cluster use a quick connect to connect the signal wire from the tach to the white wire on the guage cluster
to hook up the tach use the hot lead on the disributor and to any good ground wire and if there is a light hook it to the wire on you light switch