another console gauge quiz question - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
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post #1 of 5 (permalink) Old Oct 4th, 01, 01:50 PM Thread Starter
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scott
 
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I just bought a set of used gauges and have a question. Looking from the back of the gauge housing their is a small round black plasic piece that kinda looks like a rseistor that snaps into the backing plate, it has 4 very fine gauge wires that come out of it. Three of the wires, the red, green and black go to the fuel gauge and the yellow go to a plug that runs into the harness. what the heck is this and how do you tell if it's working or not?
thanks

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69 RS-SS 396 4-SPEED
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post #2 of 5 (permalink) Old Oct 4th, 01, 02:40 PM
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Thats your low fuel warning indicator. It will activate the low fuel light in the dash when you get down to approx 2-3 gal. of fuel. The low fuel warning light, which is where the yellow wire goes to, is between the left turn signal light and the brake light. The black wire is ground, red goes to the 12v pink power wire, green connects with the tan wire from the fuel tank sender, and yellow goes to the warning light in the dash.

Originals of these are kinda hard to find. Rick's sells repos for $50.00.

An easy way to test yours is to get it all hooked up and just ground the tan wire from the fuel tank sending unit. This should turn on the low fuel light.

If your car did not originaly have gauges you probably don't have the wiring to the low fuel light in the dash. If you don't, it takes two wires, a pink 12v wire which is tapped from the pink wire going to the brake light, and then the yellow wire. It takes the same bulb as the rest of the warning lights and it doesn't matter which side of the bulb gets the pink or yellow wire. Hope this helps.

[This message has been edited by kurt6325 (edited 10-04-2001).]
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post #3 of 5 (permalink) Old Oct 4th, 01, 03:19 PM Thread Starter
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Thanks for all your help. I will have to print all this up because I could never remember it all. How about a couple more questions? It is not attached in any way to the guage backing plate, was it originally equipped with some kind of attachment snaps when it was new and it looks like something goes into the the other end of the black plastic piece. It almost looks like a blade fuse receptacle. thanks again

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post #4 of 5 (permalink) Old Oct 4th, 01, 05:56 PM
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I don't think it attached to anything. I believe it just hangs there under the console.

I have heard that this module was originally made for another purpose in another GM car, but it also worked for the low fuel module so GM used it. A light bulb will fit into your module and light when your at low fuel. Some say this module may have been developed to go right behind the dash warning light, hence it would then use the light bulb. I don't know the true history of this module. If you do a search for "low fuel light" in the electrical section there is a 2 page post on this module that is fairly detailed on whats inside the module and how it works. Hope yours works.
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post #5 of 5 (permalink) Old Oct 5th, 01, 08:14 AM
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The "blade fuse recepticle" is actually a bulb socket (for a 194 style bulb). However, for your application, it is not used.

You can snap the end of the black housing through the hole in the gauge mounting plate and that will hold it.

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