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Old 05-27-2010, 02:32 PM   #1
CC4nj
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Join Date: Jan 2007
Chapter/Region: Tri-State
Location: Under my hood.
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2005 WRX/CRX/LGT
Obs. Black

Default Vapor/Charcoal canister location?

For the past 2 months my fathers 05 Legacy 2.5GT has had an issue.
Every single time I put gas in the car, it takes 3 or 4 tries to get it started.
And when it dose it idles low/rough for a few mins.
Everyother time the car starts and drives perfectly.

The car had a P0457 code (small evap leak)
(that code is a 2 trip code so no cell)

I have already replaced the solenoid valve and the purge valve and nothing has changed with the problem.

Next thing to logically check is the vapor canister, BUT I can't find it lol.

Anyone with any ideas chime in,
Thanks-Carlos.
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Old 05-28-2010, 10:57 AM   #2
rougeben83
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usually its in the back of the car behind the bumper.
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Old 05-28-2010, 11:22 AM   #3
CC4nj
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Quote:
Originally Posted by rougeben83 View Post
usually its in the back of the car behind the bumper.
I had the car on jackstands...First place I looked was behind the bumper/pass. rear wheel as where it is on my WRX, but on the Legacy, nothing.
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Old 05-28-2010, 04:42 PM   #4
kirbykirb
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Is there any new leaks?

It's quite simple to find really, pop your hood and look for the OBD2 certification sticker, it'd show a diagram of the entire CARB system.

follow from the gas tank, past the fuel pump. it will be between the tank and the fuel filter in the gas tank.
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Old 05-29-2010, 01:27 AM   #5
pocketrocket07
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Sounds dumb, but check the gas cap...could very well be faulty.
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Old 06-01-2010, 09:31 AM   #6
CC4nj
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Obs. Black

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Quote:
Originally Posted by kirbykirb View Post
Is there any new leaks?

It's quite simple to find really, pop your hood and look for the OBD2 certification sticker, it'd show a diagram of the entire CARB system.

follow from the gas tank, past the fuel pump. it will be between the tank and the fuel filter in the gas tank.
Ive looked over all the vacuum lines and everything looks good.
Yea I think I pretty much have to drop the fuel tank to get to the vapor canisters.

Quote:
Originally Posted by pocketrocket07 View Post
Sounds dumb, but check the gas cap...could very well be faulty.
I checked the gas cap, was also checked by the DMV when I brought it in for inspection last month.

Unfortunately problem is still happening.
But on the plus side instead of taking 3-4 tries to start after fueling, yesterday it took 2.
May be possible that the purge valve was leaking for awhile and the charcoal got saturated, and now since the purge valve was replaced, durring the drive cycles its slowly purging the vapors. IDK just a thought.
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Old 06-07-2010, 11:29 PM   #7
njdriver04
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evap system problems tough to iron out, my 2000 canister is right rear aft of the rear tire.

do you have a smoke machine you can get your hands on? my moms windstar had a slightly different problem, it wont fill all the way up at the pump, venting for the tank was clogged by spyder webs.. try blowing compressed air in the tubes a spyder could possibly gain access to .
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Old 06-29-2010, 09:47 AM   #8
CC4nj
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Obs. Black

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OK just an update for any people who may have this issue.

After stopping by AZP Installs (great people btw) right away they noticed 2 vacuum lines by the driver side strut tower/fuel regulator that the previous shop who installed the new STi short block put wrong.

So basically the charcoal canister was getting manifold pressure and causing the hard starts after putting any gas, and random power loss.
Hopefully it didnt cause any damage to the canister.


Also for ref. the canister on these Legacys is towards the rear, driver side tucked all the way up.
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