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Old 18 Jul 2003, 04:52 pm
Echo
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Default Fuel warning light never come on

Fuel warning light never comes on. The bulb is OK and the gauge works fine.

Anyone offer any info or point me to a help or FAQ on this sort of problem ?

95 Integra LS 5MT 4DR

Thanks
David


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  #2 (permalink)  
Old 18 Jul 2003, 07:04 pm
Kevin McMurtrie
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Default Re: Fuel warning light never come on

In article <7_ZRa.457143$ro6.10989140@news2.calgary.shaw.ca >,
"Echo" <spam@hotmail.com> wrote:

>Fuel warning light never comes on. The bulb is OK and the gauge works fine.
>
>Anyone offer any info or point me to a help or FAQ on this sort of problem ?
>
>95 Integra LS 5MT 4DR
>
>Thanks
>David
>
>


The empty tank sensor is a thermistor (resistor that conducts better
when hot). You should be able to measure some current flowing through
the wire even when the bulb is dark. When the fuel is no longer high
enough to bathe the sensor, the sensor becomes hot from the current
flow, it conducts better, and then the bulb glows. If you don't see
several mA flowing when the ignition is on, you have a broken connection.
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  #3 (permalink)  
Old 19 Jul 2003, 06:01 am
Echo
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Default Re: Fuel warning light never come on

Thank you all for your replies.

The indicator used to come on when the fuel was low, now it does not come on
even though I am below the red mark. I had planned to run it dry but the
jackasses in Vancouver like to crank up the price of gas on weekends so I
had to fill up or face a 12c/litter increase.

The current test sounds logical. So where is the best place to measure the
current ? At the bulb end ? Or simply look for a voltage drop across the
bulb ?

Is there a separate circuit going all the way to the tank just for the Low
Fuel light ? Is this a normal way to do this ?

Is the lamp test at ignition on supposed to illuminate the Low Fuel lamp ?

David





"Kevin McMurtrie" <mcmurtri@sonic.net> wrote in message
news:mcmurtri-ECD3E4.17040418072003@typhoon.sonic.net...
> In article <7_ZRa.457143$ro6.10989140@news2.calgary.shaw.ca >,
> "Echo" <spam@hotmail.com> wrote:
>
> >Fuel warning light never comes on. The bulb is OK and the gauge works

fine.
> >
> >Anyone offer any info or point me to a help or FAQ on this sort of

problem ?
> >
> >95 Integra LS 5MT 4DR
> >
> >Thanks
> >David
> >
> >

>
> The empty tank sensor is a thermistor (resistor that conducts better
> when hot). You should be able to measure some current flowing through
> the wire even when the bulb is dark. When the fuel is no longer high
> enough to bathe the sensor, the sensor becomes hot from the current
> flow, it conducts better, and then the bulb glows. If you don't see
> several mA flowing when the ignition is on, you have a broken connection.



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  #4 (permalink)  
Old 19 Jul 2003, 01:29 pm
David Keen
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Posts: n/a
Default Re: Fuel warning light never come on

Several months ago I heard that Shell fuels were causing problems with
Chrysler products low fuel sensor system. I had only heard about this on
newer vehicles and Shell had agreed to cover the cost of repairs. I don't
know if any reshearch was done to see if this problem effect other vehicles
and I don't know how Chrysler's low fuel warning system works. I guess this
could effect older Hondas or other vehicles too. Just a thought and an
opportunity to pont fingers at gas companies, especially when they up the
cost of gas just before the weekend.
"Echo" <spam@hotmail.com> wrote in message
news:Ox9Sa.486104$Vi5.12659222@news1.calgary.shaw. ca...
> Thank you all for your replies.
>
> The indicator used to come on when the fuel was low, now it does not come

on
> even though I am below the red mark. I had planned to run it dry but the
> jackasses in Vancouver like to crank up the price of gas on weekends so I
> had to fill up or face a 12c/litter increase.
>



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  #5 (permalink)  
Old 20 Jul 2003, 09:05 pm
Bill B. Johnson
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Posts: n/a
Default Re: Fuel warning light never come on

In article <7_ZRa.457143$ro6.10989140@news2.calgary.shaw.ca >, "Echo"
<spam@hotmail.com> wrote:

> Fuel warning light never comes on. The bulb is OK and the gauge works fine.
>
> Anyone offer any info or point me to a help or FAQ on this sort of problem ?
>
> 95 Integra LS 5MT 4DR
>
> Thanks
> David


I agree with the other posters. The first thing that I would do is run it
until it is on the empty mark and pull into a gas station with a gas can.
Leave it running until it starts running out of gas. The engine will run
poorly for several seconds. Keep an eye on the light. When the engine
starts to sputter--turn off the engine and pour the gas from can into
tank. Pull up to the pump and fill it up. If the light does not come on,
try changing the bulb before you do anything else. That bulb is over 8
years old.
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