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Old 05-13-2004, 03:10 AM   #1
zavala
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Default can my wrx live with out the charcoal canister?

with this cause any problems other than a cel? and if not how do you take it off? just plug all the hoses?
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Old 05-13-2004, 07:10 AM   #2
1DOWNCLOWN
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not to high jack but what is a charcoal canister and what does it do?
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Old 05-13-2004, 07:35 AM   #3
rankink
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Yeah, what are you talking about?
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Old 05-13-2004, 07:46 AM   #4
Wires
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A charcoal canister is literally a canister filled with charcoal that is is used to trap fuel vapors.

Different manufacuturers use them in slightly different ways - oten involving solenoids and engine vacuum. The point is to avoid releasing fuel vapors into the atmosphere and many systems introduce them into the engine for combustion.

I haven't studied the system used on Subarus, so I can't get more specific. I would think you should understand exactly how the factory system operates before you removed it. Maybe "plugging all the lines" would work, maybe not.
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Old 05-13-2004, 08:43 AM   #5
geronimo66
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Why would you want to remove it... no performance increase there.
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Old 05-13-2004, 09:25 AM   #6
Mulder
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Quote:
Why would you want to remove it... no performance increase there.
Besides this, the evaporative emission system is rather complex and has many other components besides the canister.
You will have a permanent CEL from several evap-related codes that can't be bypassed, and the crankcase and fuel tank won't be vented properly.
I can think of no good reason to do this.
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Old 05-13-2004, 09:28 AM   #7
sc00by71
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Gasoline vapor has to go somewhere. I definitely wouldn't plug it. As mentioned previously there is no performance benefit.
Shawn
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Old 05-13-2004, 01:39 PM   #8
SQC 155
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Mulder....did you go to scooby college or what??
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Old 05-13-2004, 02:39 PM   #9
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I'm still curious why you wanted to do this in the first place.
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Old 05-13-2004, 02:41 PM   #10
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Quote:
Originally posted by sc00by71
Gasoline vapor has to go somewhere. I definitely wouldn't plug it. As mentioned previously there is no performance benefit.
Shawn
WEIGHT is the only one i can think of. In my other cars i just eliminate the charcoal canister. No problem at all.. Once in a while i will smell fuel vapor but nothing strong.
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Old 05-13-2004, 02:44 PM   #11
02WRX03060
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You will throw a CEL, I have the exact number at home if you want it. I had body work done to the back right corner and the shop did not put it back in right, so my car threw a CEL. If the canister hoses are punctured you will throw a CEL also.
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Old 05-13-2004, 04:25 PM   #12
sick1.8t
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just for knowledge, my 93 L with the 1.8L DIDNT throw the cel when i removed the canister.
i just plugged the input tube right into the output tube, and bypassed the now non-existant canister.
i did it just to clean up the engine bay a little.
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Old 05-13-2004, 08:45 PM   #13
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A '93 is OBDI. The evap system is a lot less complicated and isn't monitored as closely by the ECU. Newer cars ('96-up) are OBDII, there is a lot more hardware and more parameters are monitored.
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Old 05-14-2004, 02:00 AM   #14
UGotBoost?
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Quote:
Originally posted by 02WRX03060
You will throw a CEL, I have the exact number at home if you want it. I had body work done to the back right corner and the shop did not put it back in right, so my car threw a CEL. If the canister hoses are punctured you will throw a CEL also.
That's funny, EXACT same thing happened to me.

I'm putting a drawtite hitch on my car soon, it re-mounts the Charcoal Canister (Carbon Canister, according to Draw-Tite)
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Old 05-14-2004, 03:34 PM   #15
zavala
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i was wondering just purly for weight savings. i took the rear bumper beam out (i know i know please no commments) and the bolts that held on the bumper beam also held on the charcoal can. so now it's held up with zip ties. i was just wondering if it could be removed
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Old 05-14-2004, 05:36 PM   #16
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Leave it alone. Not worth the problems that will result for those few pounds. You should find a better way to hold it in place though.
You've already removed far more weight with the bumper beam than you would with the canister.
BTW unless you remove stuff from the front of the car also you're changing the front/rear weight bias of the car in the wrong direction. If you're that serious about weight you should at least relocate the battery to the trunk, if you haven't done so already.
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Old 05-15-2004, 11:40 AM   #17
zavala
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i removed the front and rear bumper beams, took out the spare and tools and i'm buying a 15 pound optima battery.
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Old 05-15-2004, 12:11 PM   #18
cdvma
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Quote:
Originally posted by zavala
i removed the front and rear bumper beams, took out the spare and tools and i'm buying a 15 pound optima battery.
Since nobody ever pops a tire, needs to make a roadside jack, or ever gets in a accident those mods you made sound good.









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Old 05-15-2004, 12:11 PM   #19
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Old 05-15-2004, 01:39 PM   #20
wrxited
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removind the charcoal canister.......
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