The instructions will come with the new tach.
To hook up an aftermarket tachometer to a 1994 Cavalier 2.2, you can connect the green wire from the tachometer to the negative side of the ignition coil. This will allow the tachometer to receive the signal it needs to accurately display engine RPMs. Be sure to consult your tachometer's manual for specific instructions on wiring.
You will need to connect the tach to a ground and +12v source, the signal wire will have to be connected to the ground on the coil. Since the truck is fuel injected, you will likely have to find a way to wire it in with the connector on the coil. Kyrasis6 Mazdatruckin.com
the green is the signal wire and it goes to the negative side of the ignition coil
To hook up a tachometer to a 2000 Harley Softail, first locate the ignition coil and find the negative terminal, which is usually marked with a "-" sign. Connect the tachometer's signal wire to this terminal. Then, connect the power and ground wires of the tachometer to a suitable power source and ground on the bike. Finally, ensure all connections are secure and test the tachometer by starting the bike.
To install a tachometer in a 1975 Toyota Corolla KE30, first, locate the ignition coil and identify the negative terminal. Connect the tachometer's signal wire to this terminal for accurate RPM readings. Then, connect the power wire to a suitable 12V source, such as the fuse box, and ground the tachometer to the chassis. Finally, mount the tachometer securely in the dashboard and test it by starting the engine.
pin 48 on the pcm connecter is tach signal connect to your green wire from tach
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.
How do you replace a turn signal bulb in a 1998 cavalier
There is no such animal as a "tachometer sending unit." The tachometer circuit is spliced into the ignition circuit and reads the actual ignition signal used by the ignition module.
White wire coming from the distributor.... remove a section of sleeve from wire and splice the signal wire from tachometer to it!
green wire on aftermarket tachs are the signal wire i belive
Usually. It can also pull the signal from a spark wire.