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Old 06-10-2006, 08:16 PM   #1
JPIQ
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Default Valve Purge Direction

I need to know the Direction to Connect the VALVE PURGE

Or part #42084G on www.subaruparts.com

Also, it has an arrow that says to E/G!

Therefore, I am not sure to connect that end to the INTAKE?
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Old 08-27-2007, 08:33 PM   #2
cdigerlando
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did anyone ever respond to this? I have the same problem.
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Old 08-27-2007, 09:14 PM   #3
JPIQ
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http://www.subaruparts.com/diag/?mod...category=050-1

LOL, I had the same Problem and Had to figure it out by trial and error.
However, you do not need to go through what I went through.

Connection to E/G (Exhaust Gas) is away from the Intake and thus to the Exhaust.

Now, if you intall it the other way around your car will go crazy.

Let me know, if that was helpfull, cause I just went to my car to confirm this info.
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Old 08-28-2007, 06:27 AM   #4
cdigerlando
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Quote:
Originally Posted by JPIQ View Post
http://www.subaruparts.com/diag/?mod...category=050-1

LOL, I had the same Problem and Had to figure it out by trial and error.
However, you do not need to go through what I went through.

Connection to E/G (Exhaust Gas) is away from the Intake and thus to the Exhaust.

Now, if you intall it the other way around your car will go crazy.

Let me know, if that was helpfull, cause I just went to my car to confirm this info.
So arrow away from intake. Cool. Thanks. Too bad no one helped you. All they would have had to do is look at the darn car. Next time add me to your pm list. If I'm online I'll get right back with you.

Take Care
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Old 08-28-2007, 10:02 AM   #5
cdigerlando
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Default Proper Valve location

I just went to the dealer and checked one of the other WRXs there. The arrow points to the intake. So it is the other way around. Who knows if the car I checked was correct but you might want to check this again. You could have a bad valve too. Perhaps a couple of other folks could check theirs for us. Can't believe there are not responses.
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Old 12-09-2007, 03:08 AM   #6
gohrsepwr
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Quote:
Originally Posted by JPIQ View Post
http://www.subaruparts.com/diag/?mod...category=050-1

LOL, I had the same Problem and Had to figure it out by trial and error.
However, you do not need to go through what I went through.

Connection to E/G (Exhaust Gas) is away from the Intake and thus to the Exhaust.

Now, if you intall it the other way around your car will go crazy.

Let me know, if that was helpfull, cause I just went to my car to confirm this info.
theres no exhause gas line here. im guessing it means evaporated gas? these lines go to the gas tank via vapor line on the fuel rail. I found this thread searching to see if anyone has eliminated this concoction and just routed the fuel vaper line directly to the turbo inlet, i want to eliminate, the purge valve and purge valve soloenoid. does anyone know if there is a negative affect? i have a hydra stand alone so there shouldnt be any cel's. pic;
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Old 12-09-2007, 03:30 AM   #7
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I have removed the entire system. I also removed all of the charcoal canister items under the rear bumper.

Total weight of everything was actually about 11lbs not including the line under the intake manifold that I cannot remove or the line running from the charcoal canister to the engine bay.

There is a slight smell of gas at the rear of the car now, but even leaving the car in a closed garage for two days, I still have to stick my head actually underneath the rear bumper to smell it.

I have not noticed any depreciable change in fuel consumption. Considering that studies have repeatedly shown that realistically, people could improve their fuel economy by 30% by driving in a calm fashion and in a good mood, I don't think the .125 mile a gallon difference of removing the fuel vapor return system will have any effect.

/Brox
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Old 12-09-2007, 04:22 AM   #8
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hmmm, didnt think of removing the canister also thats a good idea, will look into that also. with all my mods im not worried about fuel economy at all, just looking for good ets at the track and drivability on the street. i am wondering what is the purpose of sucking air from the gas tank? i feel confident that i can do this without any problems now, thanks for the reply!
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Old 09-14-2009, 05:06 PM   #9
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Bump. Still waiting for definitive answer to the original question. ANYONE with a stock untouched wrx please check this out.
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Old 09-15-2009, 02:01 AM   #10
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I can confirm that on my 02, the "to E/G" arrow points towards the evap line, away from the inlet.

PS. what does this valve do? I understand the evap system, and the purge solenoid valve, but no other car I've seen has this separate purge valve parallel to the purge solenoid valve, and the manual doesn't address it. The only thing I can think of is that it opens under boost, venting the canister to the inlet. It's like an extra vent...but why is it necessary?
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Old 09-27-2009, 12:30 PM   #11
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Ran across this the other day...the arrow points towards the inlet. That is what the 2002 service manual dictates.
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Old 09-28-2009, 03:54 PM   #12
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Quote:
Originally Posted by Haelan View Post
Ran across this the other day...the arrow points towards the inlet. That is what the 2002 service manual dictates.
Well, look at that... I had looked previously and missed it, but in the section on the intake manifold (which is in the Fuel section of the manual, not the Intake section ), there's a diagram which shows the arrow on the purge valve pointed to the intake.

Naturally, on my car, it's pointed the other way, and to the best of my knowledge it came that way from the factory. Ditto for previous posters on this thread.

So maybe it's not directional...but then why is there an arrow...I wish I knew what the purpose of this damn valve is.
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Old 10-28-2009, 02:14 AM   #13
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do you mean this is the part number? 42084F
http://www.subaruparts.com/cart/?pn=42084FA110

need to know if this is it so i can order.
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Old 10-28-2009, 03:29 AM   #14
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I think it's 42084FE010.
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Old 10-28-2009, 09:26 AM   #15
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Quote:
Originally Posted by audsyn View Post
I think it's 42084FE010.
Yup, that's the right number.
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Old 11-15-2009, 02:28 PM   #16
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which way the arrow point? up or down?? can anyone please go you your car and confirm this. i took mine out during turbo inlet install and don't know the correct position of this valve.
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Old 11-15-2009, 02:44 PM   #17
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Quote:
Originally Posted by GHK View Post
which way the arrow point? up or down?? can anyone please go you your car and confirm this. i took mine out during turbo inlet install and don't know the correct position of this valve.
The arrow points to the hose that connects to the turbo inlet. It's what my vehicle shows....it's what the service manual shows...
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Old 11-15-2009, 02:57 PM   #18
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Nice!! thanks
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Old 09-11-2010, 07:52 PM   #19
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anyone know what are the effect of a defective Valve-purge or how to reoubleshoot the device?

thanx

Mart
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Old 11-27-2010, 05:48 PM   #20
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Quote:
Originally Posted by Daluv View Post
anyone know what are the effect of a defective Valve-purge or how to reoubleshoot the device?

thanx

Mart
+1 for this question, is there any negative effects of capping this sucker off? Seems like just about everyone whos removed their intake mani has broken the damn thing lol. I think im going to jb weld the nips back on this thing and call it a day
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Old 11-27-2010, 11:44 PM   #21
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Just to confirm, arrow points toward "LEFT"....
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Old 01-03-2011, 12:12 AM   #22
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my valve broken nipple broken! Anyone knows how much for new and where to order from internet?
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Old 03-29-2012, 04:36 PM   #23
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Reviving an old thread. I was getting P0301 misfires on cylinder #1 and the PFFFF, PFFFE codes. Well, I think this thing was installed backwards because I pulled it off, cleaned it, and put it back on. The car runs great now and I haven't thrown a code in 2 days. If no more codes, I'm gonna share this on some other forums and threads where people have been pulling their hair out over not being able to diagnose the dreaded P0301 misfires.
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Old 04-09-2012, 04:04 PM   #24
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Same issue, I changed it so the arrow points towards the intake. The misfires in cylinder #1 are gone, so no more p0301, but my car makes a strange noise (and loud) at idle coming from this valve. It's almost as if the air pressure is forcing it open. Anyone know anything more about this? I'm tempted to just block these lines off completely with end caps.
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Old 04-09-2012, 07:18 PM   #25
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I know if you pressurize the intake (testing for air leaks) without disconnecting this valve, it will make a kind of farting fluttering sound, like when you let air out of a balloon. Is it that sort of noise?
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