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Old 02-26-2021, 02:00 AM   #1
jimmy12345678
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Member#: 516695
Join Date: Jul 2020
Vehicle:
2008 Impreza 2.5i

Default What Is This Part Called? Cause Of EVAP Leak

My 2008 Subie Impreza 2.5i recently started setting a P0457 EVAP leak code, and I finally got around to smoke testing it today.

Turns out it was leaking from a plastic fitting in the rear subframe that's part of the EVAP system, but for the life of me I can't pinpoint exactly what this part is called.

I've found it in parts diagrams and in a picture online, but I can't figure out what it's exact purpose is and what it's called.




I believe it is part 42075AJ in the second picture, listed at part # 42075FG120, but I'm not exactly sure.

And from what I can find on Alldata it's not even numbered on the diagram.



Attached to part 30, which is listed as canister drain hose

Any help would be greatly appreciated thanks!
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Last edited by jimmy12345678; 02-26-2021 at 02:30 AM.
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Old 02-27-2021, 10:50 AM   #2
jimmy12345678
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Member#: 516695
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2008 Impreza 2.5i

Default

Is this some sort of "breather" that comes after the vent valve coming from the charcoal canister that needs to be pinched off in order to properly seal the system and do a smoke test. I cannot fine any service info about performing a smoke test, nor about the part pictured in my OP.

Please help!
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Old 02-27-2021, 11:18 AM   #3
CaptainSlowbaru
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Join Date: Apr 2016
Chapter/Region: Tri-State
Location: Rafferty Subaru, PA
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2002 Outback Sport
Green

Default

That is the vent hose. To smoke test, you will need to pinch that off, because the vent solenoid is in the open position with no power to it.
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Old 02-28-2021, 08:41 AM   #4
jimmy12345678
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2008 Impreza 2.5i

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Thank you!
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