Stage 1 + SF intake...AND no A/F problems? - Page 2
Page 2 of 2 FirstFirst 12
Results 16 to 30 of 30

This is a discussion on Stage 1 + SF intake...AND no A/F problems? within the Tuning: Electronic Engine Management forums, part of the Tech & Modifying & General Repairs category; Ok, I took off the intercooler and found the coupler, it slid right off without even loosening the clamp...thanks Subaru... ...

  1. #16
    Registered User XTi24's Avatar
    Join Date
    Oct 2012
    Location
    St. Louis
    Posts
    231

    Stage 1 + SF intake...AND no A/F problems?

    Ok, I took off the intercooler and found the coupler, it slid right off without even loosening the clamp...thanks Subaru...

    Anyway, I took the coupler off, then applied the clamp directly to the intercooler to throttle body tube and put everything back together.

    I reset the ECU and the A/F Learning numbers are all within spec now. Table C is now in the 2's like the other numbers are during idle. I'm going to give it a day or two and let it learn a bit, then post up another log.

    This SEEMS to have solved my problem.


    Sent from my Batphone using Tapatalk
    Last edited by XTi24; 02-07-2013 at 08:11 AM.
    2015 STi Launch Edition - Stock and awesome
    2013 DCP FXT - TP Stage 2 - Perrin dp - STi catback - 2011 WRX wheels

  2. Remove Advertisements
    ClubWRX.net
    Advertisements
     

  3. #17
    Master Baiter EJ257's Avatar
    Join Date
    Aug 2007
    Location
    On a stream bank somewhere
    Posts
    19,733
    I Support ClubWRX
    Quote Originally Posted by XTi24
    Ok, I took off the intercooler and found the coupler, I slid right off without even loosening the clamp...thanks Subaru...

    ...

    This SEEMS to have solved my problem.
    Good deal
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning, LLC

    "Never trust anything that bleeds for a week and lives ..."

    UNYSOC

  4. #18
    Registered User Heide264's Avatar
    Join Date
    May 2010
    Location
    Pittsburgh, PA
    Posts
    4,169
    I Support ClubWRX
    Quote Originally Posted by XTi24 View Post
    This SEEMS to have solved my problem.
    Good stuff! Make sure after you verify it that you follow up on your other posts as well!
    Quote Originally Posted by Trainrex
    He was throwing balloons filled with sulfuric acid and shrapnel at the swat team. They finally had to take him down with rubber bullets.
    2011 STi Build Log
    -Part 1 - Reading, Data Logging, and Analyzing Data
    -Part 2 - Turbocharger 101 & Basic Boost Control
    -Part 3 - EcuFlash, Experimental Defintions, and a Drive By Wire Intro

  5. #19
    Registered User XTi24's Avatar
    Join Date
    Oct 2012
    Location
    St. Louis
    Posts
    231

    Stage 1 + SF intake...AND no A/F problems?

    I will definitely update all posts and forums.

    BTW, I have attached pics of the coupler in question how it was when the intercooler came off.

    Click image for larger version. 

Name:	ImageUploadedByTapatalk1360253877.743734.jpg 
Views:	82 
Size:	113.2 KB 
ID:	111734

    Click image for larger version. 

Name:	ImageUploadedByTapatalk1360253926.598726.jpg 
Views:	81 
Size:	138.4 KB 
ID:	111735


    Sent from my Batphone using Tapatalk
    2015 STi Launch Edition - Stock and awesome
    2013 DCP FXT - TP Stage 2 - Perrin dp - STi catback - 2011 WRX wheels

  6. #20
    Registered User XTi24's Avatar
    Join Date
    Oct 2012
    Location
    St. Louis
    Posts
    231

    Stage 1 + SF intake...AND no A/F problems?

    Here's a new 3rd gear data log from today. I know it hasn't been a full tank of gas since the reset, but it has still been a couple hundred miles, so I thought it would still be pertinent. And I don't see that it's anywhere near what it was before. Anyway, if you get a chance to look over it I would appreciate it.

    3rd gear WOT about 2k rpms to 6400...
    https://docs.google.com/spreadsheet/...kE&usp=sharing

    I feel like I might be over boosting if anything...


    Sent from my Batphone using Tapatalk
    2015 STi Launch Edition - Stock and awesome
    2013 DCP FXT - TP Stage 2 - Perrin dp - STi catback - 2011 WRX wheels

  7. #21
    zax
    zax is offline
    \_(ツ)_/ zax's Avatar
    Join Date
    Nov 2008
    Location
    Neverland Ranch, Maryland
    Posts
    12,919
    I Support ClubWRX I Support ClubWRX
    Quote Originally Posted by XTi24 View Post
    Here's a new 3rd gear data log from today. I know it hasn't been a full tank of gas since the reset, but it has still been a couple hundred miles, so I thought it would still be pertinent. And I don't see that it's anywhere near what it was before. Anyway, if you get a chance to look over it I would appreciate it.

    3rd gear WOT about 2k rpms to 6400...
    https://docs.google.com/spreadsheet/...kE&usp=sharing

    I feel like I might be over boosting if anything...


    Sent from my Batphone using Tapatalk
    Yes, you are overboosting by about 0.5 PSI, and your FLKC reflects that.... the ECU has learned in those segments. Please reduce the number of parameters you are logging. I could care less about Dynamic Advance, Ignition timing (we can see this from the map), MAFv (you're already logging MAF!), Boost Error, and WGDC! Also, we probably don't need the AFR Learning or MAFv for this particular datalog.

    I noticed that your LTFTs are zero everywhere but the first load cell... have you driven the car a fair amount since the previous reset?
    2015 CWP WRX STi ... But how did I get roped back into an EJ motor?!
    Zax's utterly unimaginably stock 2015 STi build thread
    Zax's Shaggin' Wagon Build Thread Now tuned for 99% pure Unicorn Jizz!

    Zach | Moderator -- Mid-Atlantic States, Tech & Modifying & General Repairs
    Rollin' with the Bugeye Mafia #302 | N.E.R.D. Subject Zero
    Facebook me here

    Your Mid-A local board: http://www.clubwrx.net/forums/mid-atlantic-states/

  8. #22
    Master Baiter EJ257's Avatar
    Join Date
    Aug 2007
    Location
    On a stream bank somewhere
    Posts
    19,733
    I Support ClubWRX
    Quote Originally Posted by XTi24
    Here's a new 3rd gear data log from today. I know it hasn't been a full tank of gas since the reset, but it has still been a couple hundred miles, so I thought it would still be pertinent. And I don't see that it's anywhere near what it was before. Anyway, if you get a chance to look over it I would appreciate it.

    3rd gear WOT about 2k rpms to 6400...
    https://docs.google.com/spreadsheet/...kE&usp=sharing

    I feel like I might be over boosting if anything...
    You're overshooting target a little bit, but within the variance of the map. You still got a bit of learned knock as you approach peak torque. You forgot to remove the Dynamic Adv () parameter like I told you to

    Better than before, though. What are the learned fuel trims?

    Quote Originally Posted by zax
    Ignition timing (we can see this from the map), MAFv (you're already logging MAF!), Boost Error, and WGDC!
    I would leave ignition timing (I can't view his map), remove both MAF values, and leave Boost Error / WGDC. AF Learning on a WOT pull isn't really necessary, so remove that, as well.
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning, LLC

    "Never trust anything that bleeds for a week and lives ..."

    UNYSOC

  9. #23
    zax
    zax is offline
    \_(ツ)_/ zax's Avatar
    Join Date
    Nov 2008
    Location
    Neverland Ranch, Maryland
    Posts
    12,919
    I Support ClubWRX I Support ClubWRX
    Quote Originally Posted by EJ257 View Post
    I would leave ignition timing (I can't view his map), remove both MAF values, and leave Boost Error / WGDC. AF Learning on a WOT pull isn't really necessary, so remove that, as well.
    I forgot you can't view Cobb maps.
    2015 CWP WRX STi ... But how did I get roped back into an EJ motor?!
    Zax's utterly unimaginably stock 2015 STi build thread
    Zax's Shaggin' Wagon Build Thread Now tuned for 99% pure Unicorn Jizz!

    Zach | Moderator -- Mid-Atlantic States, Tech & Modifying & General Repairs
    Rollin' with the Bugeye Mafia #302 | N.E.R.D. Subject Zero
    Facebook me here

    Your Mid-A local board: http://www.clubwrx.net/forums/mid-atlantic-states/

  10. #24
    Registered User XTi24's Avatar
    Join Date
    Oct 2012
    Location
    St. Louis
    Posts
    231

    Stage 1 + SF intake...AND no A/F problems?

    Since I have now been through a full tank of gas and approx 300+ miles, I'm going to change the parameters you guys are suggesting and data log when I leave for lunch today. I'll post it up here later for your consideration.

    By the way, I did actually turn off the logging parameters you guys had asked me to get rid of, but then Bill@COBB asked me to reset the logging parameters to default. So I did what he asked, then pulled a good log with the info he wanted to see and posted that to the Cobb forums as well.

    I'll change it to the info you want to see and pull a separate log. 😉

    Thanks!


    Sent from my Batphone using Tapatalk
    2015 STi Launch Edition - Stock and awesome
    2013 DCP FXT - TP Stage 2 - Perrin dp - STi catback - 2011 WRX wheels

  11. #25
    Registered User XTi24's Avatar
    Join Date
    Oct 2012
    Location
    St. Louis
    Posts
    231

    Stage 1 + SF intake...AND no A/F problems?

    Well, I haven't been able to do a log since a WOT 3rd gear pull puts me well over any speed limit anywhere, and there have been popo's EVERYWHERE the past couple of days...as soon as I can do another log, I will post it up.


    Sent from my Batphone using Tapatalk
    2015 STi Launch Edition - Stock and awesome
    2013 DCP FXT - TP Stage 2 - Perrin dp - STi catback - 2011 WRX wheels

  12. #26
    Master Baiter EJ257's Avatar
    Join Date
    Aug 2007
    Location
    On a stream bank somewhere
    Posts
    19,733
    I Support ClubWRX
    Quote Originally Posted by XTi24
    Well, I haven't been able to do a log since a WOT 3rd gear pull puts me well over any speed limit anywhere, and there have been popo's EVERYWHERE the past couple of days...as soon as I can do another log, I will post it up.
    Not worth endangering yourself/others or risking a citation.
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning, LLC

    "Never trust anything that bleeds for a week and lives ..."

    UNYSOC

  13. #27
    Registered User XTi24's Avatar
    Join Date
    Oct 2012
    Location
    St. Louis
    Posts
    231

    Stage 1 + SF intake...AND no A/F problems?

    Quote Originally Posted by EJ257 View Post
    Not worth endangering yourself/others or risking a citation.
    Yeah, I'm actually trying to find somewhere that's not a public road to use. I don't want to be flying around, even on a highway, at 90+ mph just to log some data. I wish I owned an air strip.


    Sent from my Batphone using Tapatalk
    2015 STi Launch Edition - Stock and awesome
    2013 DCP FXT - TP Stage 2 - Perrin dp - STi catback - 2011 WRX wheels

  14. #28
    Master Baiter EJ257's Avatar
    Join Date
    Aug 2007
    Location
    On a stream bank somewhere
    Posts
    19,733
    I Support ClubWRX
    Quote Originally Posted by XTi24
    Yeah, I'm actually trying to find somewhere that's not a public road to use. I don't want to be flying around, even on a highway, at 90+ mph just to log some data. I wish I owned an air strip.
    It's tough. Luckily, I live far enough outside civilization that I have access to quite a few relatively remote straight sections of roadway I typically hit up.
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning, LLC

    "Never trust anything that bleeds for a week and lives ..."

    UNYSOC

  15. #29
    Registered User XTi24's Avatar
    Join Date
    Oct 2012
    Location
    St. Louis
    Posts
    231

    Stage 1 + SF intake...AND no A/F problems?

    I could head into the boonies and find a few stretches like that, but I don't really have time for a 30min drive one way... :0/


    Sent from my Batphone using Tapatalk
    2015 STi Launch Edition - Stock and awesome
    2013 DCP FXT - TP Stage 2 - Perrin dp - STi catback - 2011 WRX wheels

  16. #30
    Registered User
    Join Date
    Sep 2012
    Posts
    1
    I've got a 2013 WRX thats been having learning C issues ever since I installed my AP. I just spent the last few hours checking out my IC to TB and mine looks identical to the pictures posted above. I kept resetting my ecu and reinstalling the stock intake then back to the SF but the problems persisted, thank god I found this article.

    The stock coupler really is a piece of garbage. I never even got the chance to loosen the clamps connecting the IC; I just gave the IC a wiggle to see if I had missed any bolts keeping it in place and it slide right off, as if it was never connected to the TB in the 1st place.

    Same exact issue as OP. This thread should be brought to the attention to any and all new WRX owners, if I had not been using the accessport's monitors, I would have never noticed the issue in the 1st place and I suspect there are many others with the same issue. It's clear to me that my coupler was effed before I installed any mods.

    Thanks for the pictures and the thread.

Page 2 of 2 FirstFirst 12

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •