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Old 12-16-2013, 06:41 AM   #1
shamrock 05
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Join Date: Jul 2006
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Location: *outskirts of motor city*
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2004 "Bugeye" WRX
WRB

Default Fuel Gauge not reading correctly?

So saturday I had just over a 1/4 tank in my wrx and I stopped and put in $25. Got in the car and drove off.....so Im watching the gauge needle rise and thinking it should go roughly above 1/2 tank. Wellll it went just under the Full Now that aint right.

My04 wrx has a 15.8 gal tank. So 1/4 (which I already had) is roughly 4.xx gal and I put in 6.xx gals. So that should be about 11.xx gallons in my car.


Never had a problem like this before, sooooo any idea on what could be wrong?

The fuel system is all oem and the filters have been changed out at correct milage. Only used 93 and btw I live in SE Michigan and it has been very cold here too.

Thanks for the help fellas.
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Old 12-16-2013, 06:50 AM   #2
alexandern05
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04 wrx v7 sti swap
agile tuned 389hp 342ftlb

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Maybe there pump miscalculated and just filled it lol. Or possibly the float in your tank is messed up or possibly the gague. Give it a few days and maybe it will fix itsself or you could always just fill it and see how much it takes to fill the tank to see if it really is almost full.
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Old 12-16-2013, 09:27 AM   #3
02nismokiller
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Not sure if true, but I heard that when its colder 'supposedly' you get more fuel since there is less vapor as when it's hot outside
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Old 12-16-2013, 09:18 PM   #4
003rex
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Quote:
Originally Posted by 02nismokiller View Post
Not sure if true, but I heard that when its colder 'supposedly' you get more fuel since there is less vapor as when it's hot outside
So have I, makes logical sense to me.
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Old 12-17-2013, 06:07 AM   #5
shamrock 05
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2004 "Bugeye" WRX
WRB

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Well I have also had that damn P0457 "evap leak/loose gas cap" code for a while too.....so I bought a new gas cap and that didnt do anything

All I hear is that little blue fitting but it looks ok
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