Re: tachy no worky
Chaps,<br /> The "Gray" wire carries the signal from the ignition system to the "sender" terminal on the tach.<br /><br />If you have points ignition (probably not with 3.0LX) then the gray wire is connected to the (-) terminal of the coil. <br /><br />If you have DDIS, the gray wire is connected to one of the 3 connector plugs on the Distributor Module.<br /><br />If you have EST ignition the gray wire goes to a connector on the "coil", which I don't actually think is a coil, but more of an electronic coil.<br /><br />I think the first step in debugging would be to check the tach for power. Should have 12 volts accross the "Batt" and "Gnd" terminals on the Tach itself.<br /><br />You should check the gray wire for corrosion, etc.<br /><br />After that I'm not sure how to diagnosis it. I would try a voltmeter (in AC mode) against the Gray wire on both ends.<br /><br />Wake
