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Old 08-26-2003, 12:57 AM   #1
scobaru
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Default fuel problem with that thing behind the headlight

I have a 94 fwd with the AWD converison if that makes a difference

and theres this thing thats behind the headlight of the passenger side and the problem is when I start up my car fuel pours out of the bottem of that thing I don't know what to do or what it is heres a pic of what it looks like






help pleaseeeee
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Old 08-26-2003, 01:39 AM   #2
AWJunkies
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I have same thing on my JDM WRX. the skylines have it too and the legacy turbo US. I have no idea what it is either nor do the poeple with the skylines. I have mine open at bottom and nothing is leaking out to my knowledge. I thought it is a vapor killer kinda thing. It recycles some gas fumes back to fuel tank. I have no idea help ME too! the skylines and the legacy's go back with a tube back towards fuel tank it also says fuel tank on it. If you look at canister closely it says fuel tank on bottom.
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Old 08-26-2003, 03:13 AM   #3
AWJunkies
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I am looking it up now in my manuel. May take a while eheh so many pages!
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Old 08-26-2003, 04:40 AM   #4
scobaru
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well I was looking at the book and it has to do with emissans control I think its suppost to let the air out of the gas line but that doesn't explain why gas pours out of mine I'm thinking about blocking it off all together and screw it
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Old 08-26-2003, 05:22 AM   #5
AWJunkies
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Yeah there version of smog in japan! but still y does it say to fuel pump? does your say that? the skyline did and mine! There shouldn't be anything coming out I checked mine leaks fumes out of there!
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Old 08-26-2003, 05:25 AM   #6
scobaru
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mine say's fuel tank I think maybe got a 1.8 jdm motor
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Old 08-26-2003, 07:15 AM   #7
AKGC8
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That's the charcoal canister. Don't ask me why fuel is coming out though, I thought they just handle fumes. Maybe the canister itself is bad?
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Old 08-26-2003, 11:30 AM   #8
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whoa bad!!!!

yes it is the charcol canister it is used to vent the vapors from the fuel tank .. all subarus have them. they are in the back of the car on the newer models..

my guess is that you hooked up the fuel pump incorrectly did you have the pump out recently?
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Old 08-26-2003, 06:26 PM   #9
AWJunkies
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WOW two questions real fast is it bad to suck those fumes into the intake? I ASSUME IT IS VERY BAD! Also is it bad to let it out into engine bay should i hook up a hose and bring it to the back of the car? and let it dump there? no fuel just fumes for me.
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Old 08-26-2003, 07:48 PM   #10
HeMan1320
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logic would tell me that gas coming out of anywhere but the injectors is bad.
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Old 08-27-2003, 01:17 AM   #11
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there are three lines coming from the fuel tank area on your car. one for fuel feed to the injectors, one for return of excess fuel, and one that vents fuel vapors from the tank. the last one vents the fuel vapors, send it through the charcoal cannister, and then the vapors are regulated by a solenoid, and when told to they are sent into the intake.

you can take that cannister out and just plumb the hose over where is used to be. just keep that one way check valve going the right direction.

if fuel is coming out, i would gess that at some point you rearranged the 3 fuel hoses where they come into the engine bay.
either that or you have a much larger problem goin on in the rear of you car.
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Old 08-30-2003, 06:00 AM   #12
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Quote:
Originally posted by AWJunkies
is it bad to suck those fumes into the intake? I ASSUME IT IS VERY BAD!
Unfortunately, your assumption is the opposite of the intention of the design.

The whole point of the charcoal canister is to "trap" fumes like this and release them into the intake. Think of it this way: If you had a bunch of gas fumes, what's the simplest and safest way to get rid of them? Burn them up along with all the other gas, in the cylinder.

To the original question, gas pouring out: I've actually had this happen on my 1971 MGB when one of the carb needles wasn't seating properly. So in addition to checking that all the lines are routed correctly, you will need to check that there isn't a blockage in any of them.

Anders
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