Quote Originally Posted by Taily View Post
No, though in many cases the sensors will look the same or very very similar. The light is "switched" on by the temp switch earthing out and the guage is "sent" towards the high end of the scale by its sender allowing voltage to earth at a progressive rate as the temperature increases (by a change in resistance in relation to temperature of the sender unit).

Regards,

Dave

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You should have an earth on your column near the ignition switch (I think it might also join the harness earth coming from the combination switch out of the column) and another in the black harness coming out of the quad guages that as has been pointed-out should attach to the alloy frame. Dependant on what harness you're using/adapting you may have another one near the clock (not sure of the colour of the wire). Make sure you've got the main harness plug together properly..... Guilty of that one myself a few times in past years.

Regards,

Dave
Thanks for the info on how the switche work.. I would never had any idea on how they worked.. lol haha

Now that you said that about the earths, I went and had a look at the pictures of the wiring harness that I took a while ago, I can see the two earths that you are describing.. One is in the part that goes to the clock and the other is on the next part of the harness that is separated.. lol

Its something as simple as that that brings alot of people unstuck.. lol Well, they say first hand experience is the best type of experience.. haha well I can tell you those will be the first things that I hook up tomorrow..

Thanks heaps [MENTION=816]Taily[/MENTION]; You've solved part of the problem..