Need Help Vacuum Lines
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Need Help Vacuum Lines
Whats up everybody....So I need some help with my vacuum lines on my 94 Leg SS with a swapped TD04 turbo, and top mount innercooler. I have been searching around on the internet to find a good solid easy to read vacuum tubing lay out, and I tried scoping out some engine bay pictures, but I just cant get a good look on how the lines are suppose to be ran.
As of right now looking under my hood I know that the lines are not correctly installed.
If anyone can provide a clear picture on how they ran there lines I would be so happy! Or tell me were I can find a good picture.
Thanks dudes!
94 SUBARU LEGACY SS EJ22T, TD04 TURBO, 3 " TURBO BACK EXHAUST, TOP MOUNT INNERCOOLER.
As of right now looking under my hood I know that the lines are not correctly installed.
If anyone can provide a clear picture on how they ran there lines I would be so happy! Or tell me were I can find a good picture.
Thanks dudes!
94 SUBARU LEGACY SS EJ22T, TD04 TURBO, 3 " TURBO BACK EXHAUST, TOP MOUNT INNERCOOLER.
Last edited by Tbly89 on Sun Sep 28, 2014 4:10 pm, edited 1 time in total.
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Re: Need Help Vacuum Lines
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote: ↑Mon Jan 14, 2002 10:23 am Wait....I'm confused now.
Re: Need Help Vacuum Lines
Cool.....only problem is I have an aftermarket intake pluming that the previous owner hooked up and it seems that theres no intake reservoir. I cant find a aux purge valve either. Ill have to find a way to get a picture of my engine bay on here.
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Re: Need Help Vacuum Lines
Use photo bucket or similar. I've referenced those two graphics so many times I have em saved to my phone lol.
The aux purge valve should be on the passenger side between the head and frame rail. Its possible the PO removed it. Most Subaru's through 1996/7 had them so you could grab one off an na if necessary.
The aux purge valve should be on the passenger side between the head and frame rail. Its possible the PO removed it. Most Subaru's through 1996/7 had them so you could grab one off an na if necessary.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote: ↑Mon Jan 14, 2002 10:23 am Wait....I'm confused now.
Re: Need Help Vacuum Lines
Hey, just wondering how everybody has there PCV hoses hooked up? As of right now the guy I bought it from has the hoses running from the IAC valve directly to the PCV valve.... Shouldn't the hoses be ran to the intake reservoir?? I am pretty sure this is the cause of all my problems, with idle, and throttle response.
Let me know what you guys think, and if anyone has some engine bay pictures I would love to check em out.
Thanks!
Let me know what you guys think, and if anyone has some engine bay pictures I would love to check em out.
Thanks!
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- Fifth Gear
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Re: Need Help Vacuum Lines
Yes, you are right. It the IACV tube should be connected to the intake tract somewhere between the MAF and Turbo Inlet.
91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
Re: Need Help Vacuum Lines
Thanks alot cj91legss! This is going to fix most of my problems! I got to get some pics on here so you guys can see this monster SS! She should run mint now...
Re: Need Help Vacuum Lines
Should I just T off the IACV and PCV into one hose to the intake?
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Re: Need Help Vacuum Lines
No you want the iacv hose to be on its own line to the intake.
91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
Re: Need Help Vacuum Lines
Ok sounds good.....as fair as the PCV hose, should that also be ran to the intake by itself?
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Re: Need Help Vacuum Lines
Pcv goes to f pipe which goes to vent on top of block and to intake. Iacv goes to the black box right before the turbo inlet.
91 L-TW Wagon with a full Swap -RIP
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
92 SS Prefaced, GD dash swapped, 22T/205 Hybrid 20 psi - BEAST!
93 SS Bone Stock Gone!
94 TW Bone Stock Gone!
91 SS 4EAT Sold!
98 LGT 4EAT
98 LGT Wagon 4EAT
Re: Need Help Vacuum Lines
Thanks man! Since my intake is custom Im gonna have to drill some holes, and fab something up. I never got the stock intake with the car. I might try and buy a stock intake. It seems to me that the stock intake is better then a (hot air) intake.
Re: Need Help Vacuum Lines
This is what Im thinking about doing w/ the custom intake to make things run right. Correct me if Im wrong. The green lines represent my PCV hoses. Im going to drill two more holes on the custom steel tubing before the turbo to try and get my vac lines right. As of right not my boost control solenoid is bypassed. Thanks
Here is what it looks like
Here is what it looks like
Last edited by Tbly89 on Sun Aug 24, 2014 10:16 pm, edited 1 time in total.
Re: Need Help Vacuum Lines
I want to try and do this so the computer will get the right reading, cause as of right now the car is running way to lean, and if I dont get this figured out it might die on me.
Re: Need Help Vacuum Lines
You definitely need to try and route both the PCV and vacuum/boost lines like they should be in their stock configuration.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
Re: Need Help Vacuum Lines
I will take all the help I can get!!! By the way this is how I bought the car.....Im just trying to get it back as close as I can to stock.
Re: Need Help Vacuum Lines
Josh, what do you think of my diagram at the top of the pictures???
Re: Need Help Vacuum Lines
I'm a little confused on your "A" hose. You are showing it coming out of the purge control solenoid. Were you meaning for that to be the IAC valve? If so, if it were me I would prefer to have the IAC hose getting fresh air. In your diagram it's getting primarily crankcase blow by, and if that's all it's getting at idle may not make for good engine idling/combustion.
Additionally, the bypass valve needs to have a separate hose to the intake resonator or main intake piping. The PCV hoses, IAC, & bypass hoses all combine to the main intake piping and really need to have separate hoses to the main intake piping. You really shouldn't combine systems because they ultimately end up in the same spot.
Additionally, the bypass valve needs to have a separate hose to the intake resonator or main intake piping. The PCV hoses, IAC, & bypass hoses all combine to the main intake piping and really need to have separate hoses to the main intake piping. You really shouldn't combine systems because they ultimately end up in the same spot.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
Re: Need Help Vacuum Lines
I thought the purge control was the IAC.....sorry. Thanks for your help!
Re: Need Help Vacuum Lines
You're welcome.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
Re: Need Help Vacuum Lines
The PCV & valve cover breather hoses perform a different task and really should be separated. This scan has a little more info.
http://www.main.experiencetherave.com/s ... _turbo.pdf
Also, you don't have it identified on the diagram, but what are you doing with the main crank case vent right below the IAC valve?
http://www.main.experiencetherave.com/s ... _turbo.pdf
Also, you don't have it identified on the diagram, but what are you doing with the main crank case vent right below the IAC valve?
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
Re: Need Help Vacuum Lines
Thanks Josh
Re: Need Help Vacuum Lines
I noticed other guys have been T-ing the main crank case vent to the PCV hose and then running it to the intake before the turbo. Also after reviewing your link it appears to be the right thing to do.
Re: Need Help Vacuum Lines
Yeah, that's what I'd recommend.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm