Join Date: Jan 2000
Location: Grand Ledge, MI 48837 USA
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).]