Welcome to the North American Subaru Impreza Owners Club Wednesday November 26, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Normally Aspirated Powertrain

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.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 08-02-2010, 06:42 PM   #1
HKS Subaru
Scooby Newbie
 
Member#: 253765
Join Date: Aug 2010
Chapter/Region: NESIC
Vehicle:
2004 Sti
WR Blue

Default Plz help me fix my header problem

i have a 06 2.5i i bought an obx equal length header and test pipe now the car is ****ting the bed with check engine lights (bad o2 heater, bad high and low circuit reading and they keep coming up right after i clear the codes) i need a inspec. sticker last month so i wanted to change my equal length obx header set up to a borla rep uel headers, stromung high flow cat and a o2 spacer does anyone know where i can find this stuff for a 06 impreza...
* Registered users of the site do not see these ads.
HKS Subaru is offline   Reply With Quote
Old 08-02-2010, 07:13 PM   #2
razrielle
Scooby Specialist
 
Member#: 205698
Join Date: Mar 2009
Chapter/Region: MWSOC
Location: Wichita, KS
Default

Read the exhaust thread thats a sticky, useful info, you will be very lucky to not get cel lights without a tune
razrielle is offline   Reply With Quote
Old 08-02-2010, 08:22 PM   #3
flightwatch
Scooby Specialist
 
Member#: 231058
Join Date: Nov 2009
Chapter/Region: South East
Location: St Petersburg, FL
Vehicle:
2013 Genesis Coupe
2.0T

Default

Heck, I'm tuned and I still get the cel's. I had the P2096 code...got rid of that...I then had a P0000 code which magically went away, and now I'm getting a P0037 every other time I start my car. An OBDII scanner becomes your best friend after a header install. The o2 spacer does nothing for 05 and newer cars. The best way to kill the random cel's is to have a tuner on speed dial.
flightwatch is offline   Reply With Quote
Old 08-04-2010, 07:21 PM   #4
GrundleJuice
NASIOC Supporter
 
Member#: 165749
Join Date: Dec 2007
Chapter/Region: South East
Location: stupid Florida
Vehicle:
2007 No YELLING
on the bus!

Default

P0000 is the ready code, it goes away when there is a DTC for something thats actually wrong. HKS and flightwatch, on your 06, the only code you "should" get if the front O2 sensor is working correctly AND the headers were installed correctly is the P0420 cat efficiency code. The other codes you have are not a result of the cat itself. either the O2 sensor is toast, was damaged during install (guess that would count as being toast, too) or the headers have a leak.

The best way to kill random CEL's is to know what your doing before your waist deep in it. I'm not saying that to be condescending and sound like a snob, just to say that there is more to header swaps than swapping the parts themselves.
GrundleJuice is online now   Reply With Quote
Old 08-04-2010, 07:28 PM   #5
Chi_San
Scooby Guru
 
Member#: 53558
Join Date: Jan 2004
Chapter/Region: NWIC
Location: Deadford, OR
Vehicle:
2002 WRX Wagon
Silver

Default

You could warp your exhaust manifold using manifold wrap. You could coat it using ceramic coating.

And, there's the option to get a Wideband O2, replace the front O2 with it (if that is the one giving you problems), and use a Wideband controller that will allow you to plug that into the computer where the stock front O2 originally plugged in, and it should read properly.
Chi_San is offline   Reply With Quote
Old 08-05-2010, 08:16 PM   #6
GrundleJuice
NASIOC Supporter
 
Member#: 165749
Join Date: Dec 2007
Chapter/Region: South East
Location: stupid Florida
Vehicle:
2007 No YELLING
on the bus!

Default

Quote:
Originally Posted by Chi_San View Post
You could warp your exhaust manifold using manifold wrap. You could coat it using ceramic coating.

And, there's the option to get a Wideband O2, replace the front O2 with it (if that is the one giving you problems), and use a Wideband controller that will allow you to plug that into the computer where the stock front O2 originally plugged in, and it should read properly.
Last I heard, this was not possible on the 32 bit ECU's. I wanted to do the same but it was impossible when I looked into it.
GrundleJuice is online now   Reply With Quote
Old 08-05-2010, 10:02 PM   #7
kewlboxer2
Scooby Newbie
 
Member#: 161322
Join Date: Oct 2007
Chapter/Region: Tri-State
Location: Galeton, PA
Vehicle:
06 2.5i
Regal Blue

Default

Quote:
Originally Posted by RaceFaceXC View Post
Last I heard, this was not possible on the 32 bit ECU's. I wanted to do the same but it was impossible when I looked into it.
Yes it is impossible. The LC-1 only gives voltages as feedback. ECU looks for amperage to read AFR.
kewlboxer2 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
help me fix my stupid headlight problem... scoobyi Electrical & Lighting 4 12-13-2009 10:22 PM
Help me fix these ej20g problems! JDMFLCL Pre-2002 Factory Turbo Powertrain 12 12-18-2008 12:35 AM
some plz help me with my power FC knight2.5 Pre-2002 Factory Turbo Powertrain 0 04-04-2008 09:00 PM
Help me fix my electrical problem JohnGalt00 Electrical & Lighting 0 01-28-2005 08:38 PM
help me fix my cel problem Dr. J Service & Maintenance 0 06-10-2003 11:42 PM


All times are GMT -4. The time now is 12:31 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.