Say you had three wires coming from a tach - one was ground, one was the power and one was the coil lead. Now, if you couldn't tell the power and coil leads apart, which is the best method to do so? One is reading a lower ohm reading than the other ... is that the coil wire?
Can you tell what color the wires are? When you say you have a lower resistance reading, what two wires are you reading or are you reading from the wires to the tach case or a ground?
BL
