[Boobaru05WRX]

05 WRX
SRI
Perrin Turbo Inlet
Invidia Catless DP
HKS Catback
Walbro 255

So I’ve gotten all the hoses on except for one up top. Apparently it’s suppose to go to the blow-by sensor that sits on the intake but I don’t have one that sits there...and I can’t find it

So can I just leave that vented to the atmosphere?

 

[JaySin]

05 WRX
SRI
Perrin Turbo Inlet
Invidia Catless DP
HKS Catback
Walbro 255

So I’ve gotten all the hoses on except for one up top. Apparently it’s suppose to go to the blow-by sensor that sits on the intake but I don’t have one that sits there...and I can’t find it

So can I just leave that vented to the atmosphere?

Is it street or competition series?
Comp vents to atmosphere.
Here’s some detailed instructions.
https://www.iagperformance.com/v/v...IAG/IAG-ENG-7251/IAG-CS-AOS-WRX-7251-v.01.pdf


Sent from my iPhone using Tapatalk

 

[Boobaru05WRX]

05 WRX
SRI
Perrin Turbo Inlet
Invidia Catless DP
HKS Catback
Walbro 255

So I’ve gotten all the hoses on except for one up top. Apparently it’s suppose to go to the blow-by sensor that sits on the intake but I don’t have one that sits there...and I can’t find it

So can I just leave that vented to the atmosphere?

Is it street or competition series?
Comp vents to atmosphere.
Here’s some detailed instructions.
https://www.iagperformance.com/v/v...IAG/IAG-ENG-7251/IAG-CS-AOS-WRX-7251-v.01.pdf


Sent from my iPhone using Tapatalk

It’s a street series. I can’t find that white blow by sensor though.

 

[Boobaru05WRX]

So idk if it’s suppose to be a PCV or the Black Barbed one?

Then the blow by sensor that the instructions says it’s suppose to connect to is on the intake, but on my PERRIN intake there’s nothing there. The sensor itself isn’t even there

 

[zax]

Ok, firstly the old WRXs (EJ205) did not have a vacuum sensor in the PCV system. This was added later and used to detect any problem with the PCV system for emissions purposes. The sensor is only used to detect problems in the PCV system and is unrelated to the function. You will simply want to plumb the PCV and cylinder head vents (cross over onto the TMIC) to the AOS and from the AOS to the turbo inlet to supply vacuum.

Please link me to the install instructions and take a picture of your Perrin turbo intake.

 

[zax]

I assume these are to what you are referring:

Cyl. head vents

PCV system

Just proceed with the plumbing as if these do not exist.

 

[Boobaru05WRX]

Ok, firstly the old WRXs (EJ205) did not have a vacuum sensor in the PCV system. This was added later and used to detect any problem with the PCV system for emissions purposes. The sensor is only used to detect problems in the PCV system and is unrelated to the function. You will simply want to plumb the PCV and cylinder head vents (cross over onto the TMIC) to the AOS and from the AOS to the turbo inlet to supply vacuum.

Please link me to the install instructions and take a picture of your Perrin turbo intake.