Welcome to the North American Subaru Impreza Owners Club Tuesday September 23, 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 > Engine Management & Tuning > AccessPort

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 03-12-2012, 01:54 AM   #1
kyky489
Scooby Newbie
 
Member#: 253266
Join Date: Jul 2010
Chapter/Region: NWIC
Location: Oregon
Vehicle:
2011 STI
WRB

Default 2011 WRX Data logs...Stage 2 + AEM intake = CEL?

I recently installed an AVO down pipe on my 2011 wrx and flashed to the stage 2 + aem intake normal wastegate. Those are my only mods as far as the engine...i drove for a couple days and then i got a cel with the code p2096, which is post catalyst fuel trim system too lean bank 1. I cleared the code and made sure both my real time maps and reflash are the same. I would appreciate any feedback and advice on my data logs and as to why i keep getting the code? Im in oregon running the 91 octane map but putting 92 in my car. after i clear the code, It seems to pop up again after about 30 miles of driving...

I took this data log the other night right after clearing the code (resetting the ecu)

https://docs.google.com/spreadsheet/...ZQ2RMTlE#gid=0

Then i just took this one tonight after driving all day without resetting the ecu...

https://docs.google.com/spreadsheet/...VMxWm9CUFBYV0E
* Registered users of the site do not see these ads.
kyky489 is offline   Reply With Quote
Old 03-12-2012, 01:46 PM   #2
Airboy
Scooby Specialist
 
Member#: 72829
Join Date: Oct 2004
Chapter/Region: W. Canada
Location: Calgary, Canada
Vehicle:
2006 WRX
EFR6758

Default

Could be an exhaust leak between the downpipe and the cat-back exhaust.
Airboy is offline   Reply With Quote
Old 03-12-2012, 02:00 PM   #3
lancelucas
Scooby Specialist
 
Member#: 124282
Join Date: Aug 2006
Chapter/Region: NWIC
Location: 30000 ft
Vehicle:
04 WRX Wagon PSM
13 STI Sedan SWP

Default

Did you correctly reinstall the rear O2 sensor? It sounds like it got damaged or is unplugged or something similar.
lancelucas is offline   Reply With Quote
Old 03-12-2012, 02:12 PM   #4
kyky489
Scooby Newbie
 
Member#: 253266
Join Date: Jul 2010
Chapter/Region: NWIC
Location: Oregon
Vehicle:
2011 STI
WRB

Default

Quote:
Originally Posted by Airboy
Could be an exhaust leak between the downpipe and the cat-back exhaust.
I thought about that but the o2 sensor is before that connection so anything happening there I would think wouldn't affect it? I can still try to see, how would I go about checking to see if it is leaking?


Quote:
Originally Posted by lancelucas
Did you correctly reinstall the rear O2 sensor? It sounds like it got damaged or is unplugged or something similar.
As far as I know, I did. I will have to double check but it's pretty straight forward. All I did was unscrew it out of the stock downpipe and screw it into the AVO pipe. Then plugged it back in after I got the down pipe in place. The wires did get twisted a little before I realized I needed to take off the heat shield and all that but it was really minor...but i guess there's a chance they got messed up?
kyky489 is offline   Reply With Quote
Old 03-25-2012, 09:09 PM   #5
kyky489
Scooby Newbie
 
Member#: 253266
Join Date: Jul 2010
Chapter/Region: NWIC
Location: Oregon
Vehicle:
2011 STI
WRB

Default

Took this data log last night, temperature was 45 degrees. Can someone just look it over and let me know how it looks?

https://docs.google.com/spreadsheet/...xWE5kdEE#gid=0

Thanks!
kyky489 is offline   Reply With Quote
Old 03-26-2012, 09:34 AM   #6
subiebosch
Scooby Newbie
 
Member#: 155548
Join Date: Aug 2007
Chapter/Region: MWSOC
Location: Wayne, MI
Vehicle:
2015 2500 Dmax
2011 WRX TP STG2 COBB DP

Default

you seem to be slightly underboosting. you're only hitting 16.68psi, should be higher for stage 2. I'm at stage 1 + Cobb intake and i'm at around 16.5 or so peak on the normal waste gate map. which waste gate map are you running?

Last edited by subiebosch; 03-26-2012 at 10:51 AM.
subiebosch is offline   Reply With Quote
Old 03-26-2012, 03:38 PM   #7
kyky489
Scooby Newbie
 
Member#: 253266
Join Date: Jul 2010
Chapter/Region: NWIC
Location: Oregon
Vehicle:
2011 STI
WRB

Default

I'm running the normal waste gate map. When I was stage 1 + AEM I ran the high waste gate cause I live at a low elevation I think. I'm wondering if I have some sort of exhaust leak and that could be causing the check engine light?


Quote:
Originally Posted by subiebosch
you seem to be slightly underboosting. you're only hitting 16.68psi, should be higher for stage 2. I'm at stage 1 + Cobb intake and i'm at around 16.5 or so peak on the normal waste gate map. which waste gate map are you running?
kyky489 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
Stage 2 SF Intake Log orijinalx AccessPort 8 10-10-2012 08:43 AM
2012 data log stage 1 questions hutch959 AccessPort 4 03-13-2012 09:53 PM
2011 WRX Stock vs. Stage 1 vs. Stage 2 xluben Proven Power Bragging 34 02-15-2012 08:01 AM
2011 wrx data log :( mdsubie11 AccessPort 7 08-22-2011 09:38 PM
2011 Subaru STI stage 2 plus intake. Before/After intake test. Innovative Tuning Proven Power Bragging 25 01-08-2011 09:13 PM


All times are GMT -4. The time now is 09:17 PM.


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.