swamp

Which hose goes where? Vacuum hoses etc

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Hey guys i have a WRX gf8 wagon with the ej20gdw1ne which is an early WRX engine. 

 

Long story short I removed my intake manifold one day to paint lol and ended up getting mixed up with the hoses.

 

Ended up having issues such as uprpm not reading correctly and sluggishness. 

 

Anyway these are the hoses I'm wondering about:

 

On the left side of engine bay, round thing (boost solenoid?) I have the top hose going to the turbo-intercooler pipe, middle hose to wastegate, but I'm not sure where the lower hose goes.

 

Above that is a little red thing with a hose coming out of it. Where does that one go?

 

Also there is a pipe coming out of my turbo down pipe that faces the engine block - I can't ever remember having anything connected to that. 

 

There's this hose which is teed off too - I think it comes from my boost gauge. 

 

Here's some engine bay pics. I'm not sure if I've got the Top three little hoses on the IM right but I've got the left one that goes to the bov blocked off. I'm putting bov back in so yeah. 

 

https://photos.app.goo.gl/6C2vjWcN5RMCQNmP9

 

Thank you all. 

 

Edited by swamp

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4 hours ago, swamp said:

Hey guys i have a WRX gf8 wagon with the ej20gdw1ne which is an early WRX engine. 

 

Long story short I removed my intake manifold one day to paint lol and ended up getting mixed up with the hoses.

 

Ended up having issues such as uprpm not reading correctly and sluggishness. 

 

Anyway these are the hoses I'm wondering about:

 

On the left side of engine bay, round thing (boost solenoid?) I have the top hose going to the turbo-intercooler pipe, middle hose to wastegate, but I'm not sure where the lower hose goes.

 

Above that is a little red thing with a hose coming out of it. Where does that one go?

 

Also there is a pipe coming out of my turbo down pipe that faces the engine block - I can't ever remember having anything connected to that. 

 

There's this hose which is teed off too - I think it comes from my boost gauge. 

 

Here's some engine bay pics. I'm not sure if I've got the Top three little hoses on the IM right but I've got the left one that goes to the bov blocked off. I'm putting bov back in so yeah. 

 

https://photos.app.goo.gl/6C2vjWcN5RMCQNmP9

 

Thank you all. 

 

 

 

Couple of photos here for your boost control solenoid bro 

Does this help?

Edited by RaKid

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Here's your photo with numbered hoses and I've numbered them on two Google photos that you can reference

 

eL0AExl.pngR4jbniA.pngXsXFLvH.png

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Cheers for that, that's a massive help. I'm wondering about the EGR valve? Brown little thing above boost solenoid. The long vac hose coming out of the right of it goes to the middle nipple of the intake manifold, right?

 

I think I had the post AFM hose from boost solenoid left unattached, mixed up with another hose. Probably why I had a few issues haha

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Hey guys does anyone know where this tee'd hose should go/what it does? My guess is boost gauge... It's the last hose to go in and there's only one nipple, on the throttle body. 

 

I'm guessing that the other section would go to a point between the turbo-intercooler pipe... That I've since replaced with a silicon Hose as that pipe had a huge split in it. 

 

Solution - remove tee and just connect to throttle body?

 

https://photos.app.goo.gl/WrHJ8r4iZJK42nFp6

Edited by swamp

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3 hours ago, swamp said:

Cheers for that, that's a massive help. I'm wondering about the EGR valve? Brown little thing above boost solenoid. The long vac hose coming out of the right of it goes to the middle nipple of the intake manifold, right?

 

I think I had the post AFM hose from boost solenoid left unattached, mixed up with another hose. Probably why I had a few issues haha

 

Brown sensor by boost control solenoid (BCS) is connected to the MAP sensor so I've always called this the pre-MAP sensor but not sure on its actual name. 

 

Either way, it needs a vacuum source so it needs to be plumbed to the manifold (port doesn't matter).

 

 

3 hours ago, swamp said:

Hey guys does anyone know where this tee'd hose should go/what it does? My guess is boost gauge... It's the last hose to go in and there's only one nipple, on the throttle body. 

 

I'm guessing that the other section would go to a point between the turbo-intercooler pipe... That I've since replaced with a silicon Hose as that pipe had a huge split in it. 

 

Solution - remove tee and just connect to throttle body?

 

https://photos.app.goo.gl/WrHJ8r4iZJK42nFp6

 

I've had a look at your photo and if you compare it to my last photo you can see the tee to the right of the 6. It's plumbed into the manifold too.

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29 minutes ago, RaKid said:

 

Brown sensor by boost control solenoid (BCS) is connected to the MAP sensor so I've always called this the pre-MAP sensor but not sure on its actual name. 

 

Either way, it needs a vacuum source so it needs to be plumbed to the manifold (port doesn't matter).

 

 

 

I've had a look at your photo and if you compare it to my last photo you can see the tee to the right of the 6. It's plumbed into the manifold too.

I've got mine set up exactly like that. Just I don't know where the other end goes.. my guess is to the turbo-intercooler pipe.. I've blocked it off as I have no way to connect it to that pipe, having replaced it with silicon/rad hose. 

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I've got mine set up exactly like that. Just I don't know where the other end goes.. my guess is to the turbo-intercooler pipe.. I've blocked it off as I have no way to connect it to that pipe, having replaced it with silicon/rad hose. 
Ok so then you should be find to remove the tee and patch it directly to the vacuum source then I figure.

Sent from my SM-G925I using Tapatalk

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Cheers [mention=2396]RaKid[/mention] for your help, my car now goes sweet! 
Awesome bro that's really good to hear and glad I could help

Sent from my SM-G925I using Tapatalk

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