S2000 Under The Hood S2000 Technical and Mechanical discussions.

Transmission and fuel guage question...

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Old 02-11-2006, 02:57 AM
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Originally Posted by xviper,Feb 10 2006, 08:19 PM
It's not. The fuel gauge is based on a simple float concept. This float goes up and down as the fuel level goes up and down.
Xviper sounds right. Take a look at this link:

http://www.hondaautomotiveparts.com/auto/j...cgry5=FUEL+TANK


The sender is item 012 "meter." I appears as a conventional float on a rod. I wonder if the variations are caused by gas sloshing in the tank.
Old 02-11-2006, 07:48 PM
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Originally Posted by Yflyer,Feb 11 2006, 03:57 AM
Xviper sounds right. Take a look at this link:

http://www.hondaautomotiveparts.com/auto/j...cgry5=FUEL+TANK


The sender is item 012 "meter." I appears as a conventional float on a rod. I wonder if the variations are caused by gas sloshing in the tank.
Yep. And the gas sloshing causes one or two LED bars to blink on and off, which is more noticeable than needle drift on an analog gauge.
Old 02-11-2006, 09:27 PM
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Originally Posted by NFRs2000NYC,Feb 11 2006, 12:49 AM
This does not explain the 0-4 bar behavior. I have had nothing on my gas gauge, only to calm my driving, and see 3-4 bars come back. Ive also lost from 5 bars to 2 bars within 5 miles when driving with my foot down.

Also, the float concept would also give you an inaccurate reading if you are parked on a steep hill.

Im not arguing, just wondering if you have actually looked inside the gas tank to see how it reads. You can very well be correct, but it doesnt back up that bars going up and down behavior. I can, on command, sit in any s2000, and move bars up/down at will...(maybe not by much, but I can raise/lower them based on driving, and there is no other car I have ever driven when you can move the gas gauge up.)
I believe that the float level signal output is dampened (maybe via the ECU) so as to reduce the sudden changes in fuel level due to the
Old 02-11-2006, 09:32 PM
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On the above pic provided, the meter looks like it has electronic components in it. Im gonna read up in the helms and see whats what.

So you dont think the gas gauge has anything to do with the throttle position sensor Dave?
Old 02-11-2006, 09:53 PM
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Originally Posted by NFRs2000NYC,Feb 12 2006, 12:32 AM
So you dont think the gas gauge has anything to do with the throttle position sensor Dave?
I truly doubt it, but I
Old 02-12-2006, 06:41 AM
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xviper Posted on Feb 12 2006, 07:27 AM
As for making the bars go up and down
As far as I know on a MY00 the bars go left to right...
[QUOTE]but I
Old 02-12-2006, 07:29 AM
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Originally Posted by SpitfireS,Feb 12 2006, 07:41 AM
Serious.. with the fuel pump always on while the engine is running I think it is better to not run your tank as empty as 1 bar or warning light, because the fuel itself is the coolant for the pump.
Right, I share your point. My question was just whether or not it is normal in an S2000 for the guage to drop so fast on the last two bars. If it is just the way it works, thin I'll adapt to it -- otherwise, that's what my warranty is for.

At "E" I figure I still had 2 gallons left, based on my fill-ups. That should be more than enough to keep the fuel pump happy.
Old 02-12-2006, 12:44 PM
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Well..I don't know if 2 gallons (or 8 litres) is enough to keep your pump cool at all times. Think stop/start traffic in a hot backing for half an hour or so.
It wont break down the first time, but I wont (and I don't) make a habit of it running the fuel that low.

On the bars question:
Reading most reply's made me conclude that this behavior is the nature of the thing.
My personal experience backs it up too.

See-ya
Old 02-12-2006, 04:07 PM
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Originally Posted by SpitfireS,Feb 12 2006, 01:44 PM
Well..I don't know if 2 gallons (or 8 litres) . . .
Your 8 litres peaked my curiosity. I can't tell on this webpage if your flag colors are accurate -- are you in the Netherlands or Luxembourg?
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