Tachometer installation help?????

Question

I have a 01 hyundai accent and i bought an RPM gauge and i do not know how to install it. I know how to connect the ground, battery, but the one that makes the rpm work i don know. instructions say use either coil or car computer. Where do i check that???? PLEASE HELP

Answer 1

Would probably have a electrical shop install the tach. A Mistake could cost you alote more in the long run, a wrong wire placed could damage your ECM and then you car will not even start, run, or perform to the factory standands. This way they will be responsible for the repair, and or damage.

Answer 2

You will probably need a wiring diagram.

But for now, let's punt:

Follow one of the spark plug wires from the spark plug to the coil.  There should be little wires connected to the coil, usually red, black, etc.  One of these could be your Tach signal.  Look very closely at the terminals on the coil and see if any are labeled.  Be careful if you splice into the Tach wire!  Make sure that the connection is well sealed when you are finished.

You might have to splice into the crankshaft position sensor wiring.  If your car has one.