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Old 04-12-2004, 02:24 PM   #1
EstebaN WRX
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Member#: 48856
Join Date: Nov 2003
Location: Bs As
1995 Impreza WRX

Default problems with the gas meter readings

I have a 1995 Impreza and Ive been having some problems with the gas meter readings.
If the tank is filled full it lasts for about 200 km! and then, my fuel gauge suddenly
drops from full to empty; somehow, it seems to be affected.

Any ideas of what the problem could be? or how to fix it?

Thanks in advance!
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Old 04-12-2004, 04:11 PM   #2
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Location: Fremont, CA USA
2002 GDAA


Fwiw, I had a similar problem with my my1995 impreza many years ago. The readout would stay on the full side longer than usual and move to the empty side faster than usual. The fuel sender was replaced iirc.

If you have a factory service manual, you might want to check how to diagnose it. If not, you either adapt to it or have it repaired by a dealer.
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Old 04-12-2004, 04:41 PM   #3
EstebaN WRX
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Member#: 48856
Join Date: Nov 2003
Location: Bs As
1995 Impreza WRX


The thing is, it`s very difficult to trust any factory service manual around here.
On the other hand, I`ve checked the whole fuel pump installation myself but I can`t seem to understand which part of the system measures the fuel flow. Any idea?
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Old 04-13-2004, 09:03 AM   #4
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Location: Meridian Mississippi
Drive 2 Work,Work 2 Drive


It shouldn't have anything to do with fuel flow.

It sounds like you have a sticky float inside the tank.

If your tank is designed like my 04 WRX you will have 2 floats. One on each side. You will need a service manual to make sure the resistance in the potentiometer is correct also.
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Old 09-11-2007, 09:16 PM   #5
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Join Date: Sep 2007

My fuel gage seems to drop about 1/8 after parking it overnight. I haven't got a chance to check the actual fuel consumption (just got the car a couple days ago). Oh, it's also a 95 Impreza (L AWD Auto).
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Old 09-12-2007, 01:09 AM   #6
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Location: Anchorage, AK
2001 LL Bean Outback


I agree with Skyhawk about a stuck float. My guess is one of the two is stuck in the full position. You may be able to remove the float and free it up. By checking the voltage at the senders when the tank is full and then again when half empty you should be able to figure out what reading isn't changing and remove it for service.
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