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how do fuel gauges work?

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Old Jan 23, 2004 | 05:39 PM
  #11  
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Originally posted by dom93hatch
Any way one could hook that up in an Integra? :rick:
It's a common thing on most luxury cars today, as well as high end SUVs...... but I doubt you could install one in your car. It involves the car's ECM, and last I checked the ECM for a Lexus LS430 doesn't fit an Acura Integra.
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Old Jan 23, 2004 | 05:44 PM
  #12  
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The man is trying to bring me down yet again
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Old Jan 23, 2004 | 05:47 PM
  #13  
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Originally posted by dom93hatch
The man is trying to bring me down yet again
They may make an aftermarket kit for your car...... :dunno:
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Old Jan 24, 2004 | 09:08 AM
  #14  
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My car has that. I can't live without it now. I get in other cars and I see the gas guage but i'm still like "but how far can I go?" :dunno:
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Old Jan 24, 2004 | 12:53 PM
  #15  
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Look inside your toilet tank. That's how a fuel sensor works.
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Old Jan 24, 2004 | 06:00 PM
  #16  
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Originally Posted by fastball
On a serious note, in the gas tank you have the sending unit which consists of a float attached to a variable resistor, otherwise known as a potentiometer. The float keeps at the level of the gas, and as the float moves the potentiometer moves the opposite. That changes the voltage sent to your fuel gauge (hence "sending unit"). The fuel gauge is actually a voltmeter (if you are familiar with those). Instead of 12 volts at the top and 0 volts at the bottom, you have an "F" and an "E" printed on it. Does that clearify it? Hope you have some electronic knowledge.

awesome explaination.. :goodjob:

Originally Posted by qtiger
Look inside your toilet tank. That's how a fuel sensor works.
fastball's explaination in a nutshell :chuckles:
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Old Jan 24, 2004 | 06:21 PM
  #17  
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All of our cars come with those "how many miles to empty" things.

It's simple.

My car goes ~370 miles before it runs dry. So at 300 miles, I know I have roughly 70 miles until empty.

It's about as accurate as that stinking computer on "luxury cars" nowadays too. Since all they do is take an average based on your current MPG (using fuel rate and fuel consumption) and how much fuel you have left in your tank.
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Old Jan 24, 2004 | 08:05 PM
  #18  
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Originally Posted by antarius
All of our cars come with those "how many miles to empty" things.

It's simple.

My car goes ~370 miles before it runs dry. So at 300 miles, I know I have roughly 70 miles until empty.

It's about as accurate as that stinking computer on "luxury cars" nowadays too. Since all they do is take an average based on your current MPG (using fuel rate and fuel consumption) and how much fuel you have left in your tank.

In that respect, the 1927 Ford Model T had a similar computer.
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