Hi, I just bought a tach for my 95 sentra, because my sentra didnít come with one. Now keep in mind Iím not very mechanically inclined but I thought I would give it a try. The problem is the stupid green wire. I have to connect it to the distributor cap but I can't figure out which wire to connect it to. I've spent hours searching for and studying wire diagrams, and I still canít figure it out. There are three wires that go from the distributor to the ECM. I thought the blue wire was the right one but when connected to the tach, the tach only goes up to 2000 rpm then goes back to 0.
Any help would be great. Thanks