this one has been mentioned a few times in some of these low fuel light discussions. it doesnt look like this kit is available to order anymore, so lets copy it and remake it!

here is the parts list from what i can gather

(3) 10k-ohm resistors
(2) 47k-ohm resistors
(3) unknow resistors
(1) 100uF capacitor
(1) 220uF capacitor
(1) unknown diode
(1) unknown transistor
(1) 10k potentiometer
(1) light bulb or LED

start (without the resistors)


finished


Warning! light

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First LX9 Fiero GT, 1987 | My Fiero Fuel Economy | MPG Display for OBD I
Youtube Videos of My GT | 87 GT Inside Test Run | 3500 Fiero GT Test Run 01
3500 Fiero GT Test Run 02 | 3500 Fiero GT Test Run 03 | 3500 Fiero GT Test Run 04
If you can't fix it with a hammer, you've got an electrical problem
Fiero's are people too. We pay just as much attention to them, if not more than our loved ones
screw paying those bastards. im not going to become rich by paying for things.....

bump!

c'mon, we all want..., no...we all NEED this.

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First LX9 Fiero GT, 1987 | My Fiero Fuel Economy | MPG Display for OBD I
Youtube Videos of My GT | 87 GT Inside Test Run | 3500 Fiero GT Test Run 01
3500 Fiero GT Test Run 02 | 3500 Fiero GT Test Run 03 | 3500 Fiero GT Test Run 04
If you can't fix it with a hammer, you've got an electrical problem
Fiero's are people too. We pay just as much attention to them, if not more than our loved ones
screw paying those bastards. im not going to become rich by paying for things.....

Check this out.

http://www.classicchevy.com...d=29-80&dept_id=1268

and this one has many uses:

http://autospeed.com/cms/ti.../A_2476/article.html

http://store.autospeed.com/Items/14465

I believe the price is about 30 USD shipped ( depending on where in the US )

[This message has been edited by flimbob (edited 07-29-2009).]

Using Google I found a link to a low fuel light project on a Miata site. ( used search terms LM339 and "low fuel light")

The main part of the circuit is a LM339 quad voltage comparator, which is used to compare voltage on the sensor wire from the fuel gauge. The small trimpot located on the lower left of the circuit board is used to set the trigger voltage to turn on the lamp when the fuel level is low.

Link: http://list.miata.net/1995-04/1052.html

There should be a few other circuits for Low Fuel Light on the net, plus some cars have Factory setups that could be transplanted.
Some changes may include replacing the panel lamp with a LED.

[This message has been edited by StockGT (edited 07-29-2009).]

nice. but 64 bux is then again, a 64 dollar light can help save your fuel pump, towing expenses and long walks on the bea....to the gas station from the side of the road. i like the build it yourself one tho. just a nice hobby getting to build electronics.

yea, seeing that 2nd post gave me new terms to serch with. finding pleasing results from the glance i just took.

[This message has been edited by americasfuture2k (edited 07-29-2009).]