Welcome to the North American Subaru Impreza Owners Club Thursday March 28, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 02-01-2013, 05:33 PM   #726
07 Boosty
Scooby Newbie
 
Member#: 329069
Join Date: Aug 2012
Chapter/Region: SWIC
Vehicle:
2011 WRX Hatchback
WRB

Default

Quote:
Originally Posted by KSTech View Post
The 2007 STI only needs the driver side block-off plate. It has the passenger side blocked off from the factory. This is the STI-only, not the WRX. It is much easier to do the 07 STI deletion than all the other models.
Does this require you to remove the intake manifold on the 07 STI?
* Registered users of the site do not see these ads.
07 Boosty is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 02-01-2013, 06:36 PM   #727
Acejam2k
Scooby Specialist
 
Member#: 42645
Join Date: Sep 2003
Chapter/Region: NESIC
Location: MA
Vehicle:
2014 Audi S4
Brilliant Black

Default

Quote:
Originally Posted by 07 Boosty View Post
Does this require you to remove the intake manifold on the 07 STI?
No, it does not. To properly remove the solenoid all together, you need to remove the TMIC, but that's about it. However many leave the solenoid mounted and it's electrial connector plugged in since it has the barometric pressure sensor in there. I opted the cut mine off, and removed the solenoid.
Acejam2k is offline   Reply With Quote
Old 02-02-2013, 01:12 AM   #728
07 Boosty
Scooby Newbie
 
Member#: 329069
Join Date: Aug 2012
Chapter/Region: SWIC
Vehicle:
2011 WRX Hatchback
WRB

Default

Quote:
Originally Posted by Acejam2k View Post
No, it does not. To properly remove the solenoid all together, you need to remove the TMIC, but that's about it. However many leave the solenoid mounted and it's electrial connector plugged in since it has the barometric pressure sensor in there. I opted the cut mine off, and removed the solenoid.
Ok, cool. So I would just need to block off the port to the head, and leave the actual valve where it's at, just for the sensor?
07 Boosty is offline   Reply With Quote
Old 02-02-2013, 01:13 AM   #729
Acejam2k
Scooby Specialist
 
Member#: 42645
Join Date: Sep 2003
Chapter/Region: NESIC
Location: MA
Vehicle:
2014 Audi S4
Brilliant Black

Default

Quote:
Originally Posted by 07 Boosty View Post

Ok, cool. So I would just need to block off the port to the head, and leave the actual valve where it's at, just for the sensor?
Yes, that is the easiest method.
Acejam2k is offline   Reply With Quote
Old 02-02-2013, 01:28 AM   #730
07 Boosty
Scooby Newbie
 
Member#: 329069
Join Date: Aug 2012
Chapter/Region: SWIC
Vehicle:
2011 WRX Hatchback
WRB

Default

Quote:
Originally Posted by Acejam2k View Post
Yes, that is the easiest method.
Thank you very much for the help!
07 Boosty is offline   Reply With Quote
Old 02-02-2013, 01:36 AM   #731
Excision
Scooby Specialist
 
Member#: 294622
Join Date: Sep 2011
Chapter/Region: TXIC
Location: Texas
Vehicle:
2007 STI - WRB
Perrin GTX3076r, Slow

Default

^ +2 im about to order a block off plate.
Excision is offline   Reply With Quote
Old 02-10-2013, 02:51 PM   #732
Zebe
Scooby Specialist
 
Member#: 118698
Join Date: Jun 2006
Chapter/Region: MAIC
Location: Cockeysville, MD
Vehicle:
07 WRX Ltd Wagon
94 Miata

Default

Quote:
Originally Posted by northman View Post
You can choose not to believe what I say, that is fine. I've been down the secondary air failure thing before, and when I did get CELs they never put me in limp mode. This pressure sensor failure was different. The car ran like crap. I actually thought my tranny was going out, it drove erratically enough to feel like there was a bunch of backlash in the driveline. It reved to 2,500 when starting cold.

I pulled the connector off and 2 of the pins were broken. With the bad connector it read 6 PSI ambient. With the connector disconnected, it read something like 18 PSI. Both are wrong, standard air pressure should be 14.7 plus or minus a bit.

Before I figured this out, I did a relatively tame pull and hit fuel cut, tripping an overboost code. According to my boost gauge my max boost was 16.6 PSI. The map I run is tuned for 18 PSI, so something was definitely not right.

The tuner that I've been using is the head tuner for Cobb, I think he knows his way around an Accessport.

If the 06 runs fine without the valve, it probably means that the pressure sensor is in a different location, or it uses a different tuning philosophy.

Edit: I am cut n pasting part of the explanation my tuner gave me, I don't expect he will mind.


"It does indeed sound like something is amiss with the barometric pressure sensor. 6.2psi barometric pressure would be roughly 22000 feet elevation and I'm guessing you weren't on an airplane when this happened :-D The incorrect atmospheric pressure measurement would have also caused the P0244 as relative manifold pressure is used to determined that code -- it is the "boost cut" feature to minimize the risk of damage if control over boost levels is lost. In this situation, at ~17psi of manifold boost (as per your auxilliary gauge), or ~31psi of manifold absolute pressure, the ECU would see ~25psi of manifold relative pressure (31psi-6.2psi), which is above the threshold I set for setting the P0244 code / inducing boost cut."
Everything seemed to be going well after removing the secondary air injection system until...I threw a P0244 code. After some searching, I found the above post and a series of post replies that look to implicate a faulty sensor.

Upon inspection of the valve connector, I don't have any broken pins. My AP is measuring about 7psi barometric pressure with sensor connected and 21.8psi barometric pressure with sensor disconnected. I presume that because I am not seeing 14-15psi it is a faulty sensor.

northman - if you are still watching this thread, will you give my logic a once over and let me know if you think I need a new sensor (which means a new valve)?
Zebe is offline   Reply With Quote
Old 02-11-2013, 02:08 PM   #733
northman
Scooby Newbie
 
Member#: 163631
Join Date: Nov 2007
Chapter/Region: NWIC
Location: Seattle
Vehicle:
07 Forester XT
Dom 1.5XT-R

Default

Quote:
Originally Posted by Zebe View Post
My AP is measuring about 7psi barometric pressure with sensor connected and 21.8psi barometric pressure with sensor disconnected. I presume that because I am not seeing 14-15psi it is a faulty sensor.

northman - if you are still watching this thread, will you give my logic a once over and let me know if you think I need a new sensor (which means a new valve)?
your problems are similar to what I had, the ECU needs correct pressure data to work correctly. Replacing the valve solved my issue. Kind of sucks to pay good money for a valve that you don't even use, but for the sensor.
northman is offline   Reply With Quote
Old 02-11-2013, 03:23 PM   #734
V8 GTFO Lesbic WGN
Scooby Specialist
 
Member#: 191212
Join Date: Oct 2008
Chapter/Region: MWSOC
Location: Imported to Detroit :-(
Vehicle:
2007 FXT-5MT E85 20G
TD06SL2 Kinugawa

Default

Quote:
Originally Posted by Acejam2k View Post
Just an update to my previous post:

2007 STI's have ports on *BOTH* heads. However, the passenger side head has a block-off plate on it from the factory, as displayed in the picture below. I found this on my 2007 STI, and on my friend's '07 as well. I have also confirmed this from other 2007 STI pictures that I've found on here and IWSTI.

2007 STI passenger side head with factory block-off plate:

Anybody know the Part Number?, can't find at oppossedforces.com and the parts local guy asked me if the STi is 5 or 6 speeds------> clueless and he can't order without a ****ing VIN, when I told him it was for a modded Forester, it was the icing on the cake, parts guy =
V8 GTFO Lesbic WGN is offline   Reply With Quote
Old 02-11-2013, 03:53 PM   #735
Zebe
Scooby Specialist
 
Member#: 118698
Join Date: Jun 2006
Chapter/Region: MAIC
Location: Cockeysville, MD
Vehicle:
07 WRX Ltd Wagon
94 Miata

Default

A little something to add to the instructional library...


I searched this thread, and came up negative for "video" and "youtube", so this looks like it's new to the thread. My apologize if it's been posted before.
Zebe is offline   Reply With Quote
Old 02-11-2013, 03:54 PM   #736
Zebe
Scooby Specialist
 
Member#: 118698
Join Date: Jun 2006
Chapter/Region: MAIC
Location: Cockeysville, MD
Vehicle:
07 WRX Ltd Wagon
94 Miata

Default

Quote:
Originally Posted by northman View Post
Kind of sucks to pay good money for a valve that you don't even use, but for the sensor.
Yup. Thanks for the reply.

It was a faulty sensor in the valve. A new valve solved the problem. Barometric pressure now reads 14.7psi.

For a 2007, the SOA part number for the valve with the sensor is 14864AA020.

Last edited by Zebe; 02-13-2013 at 09:18 PM. Reason: adding stuff
Zebe is offline   Reply With Quote
Old 03-01-2013, 04:23 PM   #737
BEMWRX06
Scooby Newbie
 
Member#: 348715
Join Date: Mar 2013
Default

Hello all, So my LH Combi valve is stuck open and I dont want to replace it. In short my question is, Instead of installing the block off plate for the LH combi valve on the head or in between the pipe and valve, can I just use some high temp epoxy and plug the Inlet on the valve?
BEMWRX06 is offline   Reply With Quote
Old 03-07-2013, 07:49 AM   #738
V8 GTFO Lesbic WGN
Scooby Specialist
 
Member#: 191212
Join Date: Oct 2008
Chapter/Region: MWSOC
Location: Imported to Detroit :-(
Vehicle:
2007 FXT-5MT E85 20G
TD06SL2 Kinugawa

Default

Anybody know the Passenger side OEM Plate PN to block off the air pump port in the engine? 2007 STI come with the port blocked on passenger side.
V8 GTFO Lesbic WGN is offline   Reply With Quote
Old 03-07-2013, 08:13 AM   #739
StiBoost21
Scooby Newbie
 
Member#: 317951
Join Date: Apr 2012
Chapter/Region: MWSOC
Location: Medford, NJ
Vehicle:
07 STI
SWP

Default

For some reason i dont think KSTech lists the PN on their website. Im not sure if anyone else manufactures them but I recall only seeing the KStech one when I was looking for them.
StiBoost21 is offline   Reply With Quote
Old 03-07-2013, 08:55 AM   #740
stretchedk7
Scooby Guru
 
Member#: 170602
Join Date: Jan 2008
Location: j-ville fl
Vehicle:
06 Wrx RWD Auto
76MM-AEM-2200's

Default

you can make one super easily. and really cheap ^^
stretchedk7 is offline   Reply With Quote
Old 03-07-2013, 08:55 AM   #741
stretchedk7
Scooby Guru
 
Member#: 170602
Join Date: Jan 2008
Location: j-ville fl
Vehicle:
06 Wrx RWD Auto
76MM-AEM-2200's

Default

if someone sent me a cardboard piece of the dimensions i could produce them for dollars a piece! my 06 wrx has them but im not snatching it apart to get the dimensions
stretchedk7 is offline   Reply With Quote
Old 03-07-2013, 11:01 AM   #742
V8 GTFO Lesbic WGN
Scooby Specialist
 
Member#: 191212
Join Date: Oct 2008
Chapter/Region: MWSOC
Location: Imported to Detroit :-(
Vehicle:
2007 FXT-5MT E85 20G
TD06SL2 Kinugawa

Default

I want the $3 OEM plate, anyone has the Part Number? 2007 STi passenger side block off port plate pictured.

V8 GTFO Lesbic WGN is offline   Reply With Quote
Old 03-10-2013, 11:09 PM   #743
Zero Signal
Scooby Newbie
 
Member#: 171316
Join Date: Feb 2008
Chapter/Region: TXIC
Location: Texas
Vehicle:
2015 STI
WRB

Default

14754aa050
Zero Signal is offline   Reply With Quote
Old 03-11-2013, 04:14 PM   #744
V8 GTFO Lesbic WGN
Scooby Specialist
 
Member#: 191212
Join Date: Oct 2008
Chapter/Region: MWSOC
Location: Imported to Detroit :-(
Vehicle:
2007 FXT-5MT E85 20G
TD06SL2 Kinugawa

Default

Thx but That PN is for drivers side, I need PN for passengers side.
V8 GTFO Lesbic WGN is offline   Reply With Quote
Old 03-11-2013, 04:15 PM   #745
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

Quote:
Originally Posted by V8 GTFO Lesbic WGN View Post
Thx but That PN is for drivers side, I need PN for passengers side.
pst, the bolt spacing is the same and should seal on both sides. That info is in this thread.
Leafy is offline   Reply With Quote
Old 03-11-2013, 05:39 PM   #746
V8 GTFO Lesbic WGN
Scooby Specialist
 
Member#: 191212
Join Date: Oct 2008
Chapter/Region: MWSOC
Location: Imported to Detroit :-(
Vehicle:
2007 FXT-5MT E85 20G
TD06SL2 Kinugawa

Default

Bolt spacing is not the same you have to alter it for passenger side, yes---------I have a drill press but if there is an OEM part that respects the bolt pattern then I will get the one I don't have to modify.

I give up, I will ask the parts guy for the PN.
V8 GTFO Lesbic WGN is offline   Reply With Quote
Old 03-12-2013, 08:18 AM   #747
Zero Signal
Scooby Newbie
 
Member#: 171316
Join Date: Feb 2008
Chapter/Region: TXIC
Location: Texas
Vehicle:
2015 STI
WRB

Default

Quote:
Originally Posted by V8 GTFO Lesbic WGN View Post
Thx but That PN is for drivers side, I need PN for passengers side.
That PN is for the passenger side they never made one for the driver side but you can drill the passenger side to fit the driver side too.
Zero Signal is offline   Reply With Quote
Old 03-12-2013, 09:40 AM   #748
V8 GTFO Lesbic WGN
Scooby Specialist
 
Member#: 191212
Join Date: Oct 2008
Chapter/Region: MWSOC
Location: Imported to Detroit :-(
Vehicle:
2007 FXT-5MT E85 20G
TD06SL2 Kinugawa

Default

Nope, there is a driver's side and a passenger side, the one I am looking for is below comes in the 2007 STi, the one you are referring to is from the Tribeca 14754aa050.

There is two different OEM block plates for driver's and passenger's side, I need the PN for the 2007 STi, pictured below.



Therefore, there is no need to do this:


Last edited by V8 GTFO Lesbic WGN; 03-12-2013 at 11:21 PM.
V8 GTFO Lesbic WGN is offline   Reply With Quote
Old 03-12-2013, 10:08 PM   #749
Zero Signal
Scooby Newbie
 
Member#: 171316
Join Date: Feb 2008
Chapter/Region: TXIC
Location: Texas
Vehicle:
2015 STI
WRB

Default

Hmm didn't realize they made a driver side one good to know now that I already did it lol that part number I posted tho is the one I used and it fit on the passenger side perfect and I had to drill it for the driver side
Zero Signal is offline   Reply With Quote
Old 03-12-2013, 10:37 PM   #750
Acejam2k
Scooby Specialist
 
Member#: 42645
Join Date: Sep 2003
Chapter/Region: NESIC
Location: MA
Vehicle:
2014 Audi S4
Brilliant Black

Default

07 STI passenger side OEM block-off plate: 11084AA020

http://www.auto-parts.spb.ru/cat/su/...OcIebn4gMPPFdV

You're welcome
Acejam2k is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Air pump removal + fail? 07 WRX. Badmunky Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 14 03-10-2018 03:40 AM
WTB 06-07 Wrx AIR PUMP StageWrx Private 'Wanted' Classifieds 1 03-30-2009 10:44 PM
is it safe if i remove the restrictor on my wrx prlblkwrx02 Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 44 03-24-2007 07:21 PM
Is it safe to switch to summer tires yet? It is March after all... Samirr76 Tri-State Area Forum 38 03-06-2003 09:25 PM

All times are GMT -4. The time now is 05:54 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.