Welcome to the North American Subaru Impreza Owners Club Tuesday August 14, 2018
Home Forums 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.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 04-27-2017, 02:51 PM   #51
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

so that didn't work as hoped. Also i noticed the data log i didn't even see the OCV log. Ill try to call cobb again to see how to properly upload it on to this fourm
* Registered users of the site do not see these ads.
Dreamtribejay is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 04-27-2017, 03:36 PM   #52
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

called cobb and they told me how to change the parameters to data log. i was just assuming that it was data logging the 6 that were on the screen. so i will change those and upload that.

Last edited by Dreamtribejay; 04-27-2017 at 05:17 PM.
Dreamtribejay is offline   Reply With Quote
Old 04-27-2017, 05:24 PM   #53
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

Finally was able to figure out how to upload data logs


This is after startup and reeving to 2100rpms(or at least trying to keep it consistent but it keeps bogging down

https://docs.google.com/spreadsheets...it?usp=sharing

This is cruising back roads

https://docs.google.com/spreadsheets...it?usp=sharing

This was on the highway

https://docs.google.com/spreadsheets...it?usp=sharing
Dreamtribejay is offline   Reply With Quote
Old 04-27-2017, 08:45 PM   #54
Subie_
Scooby Specialist
 
Member#: 419354
Join Date: Apr 2015
Chapter/Region: MAIC
Location: Delaware
Vehicle:
2007 STI
Crystal gray metallic

Default P0021 code??

Just saw page 3 of this thread. I'll take a closer look in the AM.
Don't bother with the ECU, it's not the problem.

Last edited by Subie_; 04-28-2017 at 11:20 AM.
Subie_ is offline   Reply With Quote
Old 04-28-2017, 01:25 PM   #55
Subie_
Scooby Specialist
 
Member#: 419354
Join Date: Apr 2015
Chapter/Region: MAIC
Location: Delaware
Vehicle:
2007 STI
Crystal gray metallic

Default P0021 code??

LH works, but it definitely lags relative to the RH. On the left side of the graph, you can see the RH move to position, however the LH just hangs out at 0. The ECU waits a second or two and slowly ramps up the juice until it finally moves.



I believe the issue is a physical restriction or faulty OCV. Curious of what RPM it most frequently occurs, I took the absolute value of the difference between RH & LH and plotted it against RPM. Large deviations (anything greater than 2 degrees apart) most frequently occur between 1,000 & 1,700 ish. I think this makes sense though... it's harder to move an object from a stand-still compared to keeping an object in motion, especially with higher oil pressure.



You said you replaced the OCV, but for some reason I still suspect it. I'd remove both OCVs and measure the resistance between the 2 pins on each and let us know. Spend some time and very carefully compare the two to each other and to the "old" one that you removed (if you still have it). are the mounting tabs identical? are the little slots the same width, length, and position on the cylinder? If you somehow have the incorrect part number installed, or if LH & RH are different numbers you'll get data like this.

Swap them when reinstalling - put the LH in the RH, and RH in the LH. Take it for another drive and record data. If the RH AVCS lags then the OCV is highly suspect. You did this before, but you were looking for an "on or off" CEL which doesn't describe system performance - the devil is in the details and data doesn't lie.

Last edited by Subie_; 04-28-2017 at 03:46 PM.
Subie_ is offline   Reply With Quote
Old 04-29-2017, 12:14 PM   #56
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

I switched the LH OCV and the RH OCV and did a good inspection and they both look the exact same other then the numbers on the plug. I got the new one straight from Subaru. I did do a resistance check on the plugs and i dont know if i did it wrong but both sides read 0.00 on the meter i was using. But he is the data log from after i switched them.

https://docs.google.com/spreadsheets...it?usp=sharing

https://docs.google.com/spreadsheets...it?usp=sharing

https://docs.google.com/spreadsheets...it?usp=sharing

https://docs.google.com/spreadsheets...it?usp=sharing
Dreamtribejay is offline   Reply With Quote
Old 04-29-2017, 10:59 PM   #57
Subie_
Scooby Specialist
 
Member#: 419354
Join Date: Apr 2015
Chapter/Region: MAIC
Location: Delaware
Vehicle:
2007 STI
Crystal gray metallic

Default P0021 code??

If that doesn't trigger CEL then I don't know what will! Swapping OCVs made it go from bad to worse. The LH side basically doesn't work at all now (isn't data fun?!)

Swap them back and measure resistance - it's the symbol that looks kinda like a horseshoe. This link should help: https://www.ifixit.com/Guide/How+To+...r/25632#s65006
and then PM me your address. I'm going to send you a super low mileage 0921AA080 OCV. MY 2011 is on the cusp of when Subaru changed part numbers. Unless the resistance on your new OCV is greater than 12 ohms, I suspect you need 0921AA080... I'm happy to eat the shipping cost to find out.
If in fact you have the correct part number then replacing the 'old' OCV will probably benefit the RH side's performance.

Last edited by Subie_; 04-29-2017 at 11:04 PM.
Subie_ is offline   Reply With Quote
Old 04-29-2017, 11:08 PM   #58
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

Quote:
Originally Posted by Subie_ View Post
If that doesn't trigger CEL then I don't know what will! Swapping OCVs made it go from bad to worse. The LH side basically doesn't work at all now (isn't data fun?!)

Swap them back and measure resistance - it's the symbol that looks kinda like a horseshoe. This link should help: https://www.ifixit.com/Guide/How+To+...r/25632#s65006
and then PM me your address. I'm going to send you a super low mileage 0921AA080 OCV. MY 2011 is on the cusp of when Subaru changed part numbers. Unless the resistance on your new OCV is greater than 12 ohms, I suspect you need 0921AA080... I'm happy to eat the shipping cost to find out.
If in fact you have the correct part number then replacing the 'old' OCV will probably benefit the RH side's performance.

So i think theres where i may have messed up. I was measuring the resistance of the actual blue plug on the wire harness. I should be measuring the resistance of the actual OCV?
Dreamtribejay is offline   Reply With Quote
Old 04-29-2017, 11:10 PM   #59
Subie_
Scooby Specialist
 
Member#: 419354
Join Date: Apr 2015
Chapter/Region: MAIC
Location: Delaware
Vehicle:
2007 STI
Crystal gray metallic

Default

Quote:
Originally Posted by Dreamtribejay View Post
So i think theres were i may have messed up. I was measuring the resistance of the actual blue plug on the wire harness. I should be measuring the resistance of the actual OCV?
Sounds like it. You need to measure resistance across the 2 prongs on the OCV, not the harness.
Subie_ is offline   Reply With Quote
Old 04-29-2017, 11:15 PM   #60
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

Quote:
Originally Posted by Subie_ View Post
Sounds like it. You need to measure resistance across the 2 prongs on the OCV, not the harness.
Haha whoops im a newb with electrical. Ill do that hopefully tomorrow and report back.
Dreamtribejay is offline   Reply With Quote
Old 04-30-2017, 09:03 AM   #61
Rustys13
Scooby Newbie
 
Member#: 339770
Join Date: Dec 2012
Default

my WRX through the same code p0022 on Friday, can't start the car with the key but I can push start it but it doesn't run great. Would this cause a no start issue?
Rustys13 is offline   Reply With Quote
Old 04-30-2017, 06:28 PM   #62
Subie_
Scooby Specialist
 
Member#: 419354
Join Date: Apr 2015
Chapter/Region: MAIC
Location: Delaware
Vehicle:
2007 STI
Crystal gray metallic

Default

Quote:
Originally Posted by Rustys13 View Post
my WRX through the same code p0022 on Friday, can't start the car with the key but I can push start it but it doesn't run great. Would this cause a no start issue?

No.
Check your timing
Subie_ is offline   Reply With Quote
Old 05-01-2017, 01:21 PM   #63
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

So just did the resistance check on both ocv and ot seems to be there both at 9.3 when i hold the probes steady.

Im going to swap them back and go for a long drive and get the cel to pop up while im data logging
Dreamtribejay is offline   Reply With Quote
Old 05-01-2017, 06:16 PM   #64
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

Quote:
Originally Posted by Dreamtribejay View Post
So just did the resistance check on both ocv and ot seems to be there both at 9.3 when i hold the probes steady.

Im going to swap them back and go for a long drive and get the cel to pop up while im data logging
I ended up finally data logging when the cel came on and ill post the data tomarrow at work.
Dreamtribejay is offline   Reply With Quote
Old 05-02-2017, 11:11 AM   #65
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

here is the data log from when the CEL popped up.



https://docs.google.com/spreadsheets...it?usp=sharing
Dreamtribejay is offline   Reply With Quote
Old 05-03-2017, 01:12 AM   #66
pet3r
Scooby Specialist
 
Member#: 283134
Join Date: May 2011
Location: AZ
Vehicle:
2015 STi LE
EFR7163 500whp/550wtq

Default

I had this exact same problem on my built 15 STi. Car ran just fine, idled fine, made power. Had P0017. Changed oil, changed OCV, and a lot of what you've done. I was able to see from the AP that my LHOCV was stuck at 0. It wouldn't budge. You can read my thread here if it helps: http://www.iwsti.com/forums/2-5-lite...-symptoms.html

Checked timing and it had skipped two teeth. Installed a new timing belt and it hasn't come back since. I didn't read through this thread in super detail, but I'm not sure if you've completely inspected the timing belt or replaced it.
pet3r is offline   Reply With Quote
Old 05-03-2017, 06:41 PM   #67
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

Quote:
Originally Posted by pet3r View Post
I had this exact same problem on my built 15 STi. Car ran just fine, idled fine, made power. Had P0017. Changed oil, changed OCV, and a lot of what you've done. I was able to see from the AP that my LHOCV was stuck at 0. It wouldn't budge. You can read my thread here if it helps: http://www.iwsti.com/forums/2-5-lite...-symptoms.html

Checked timing and it had skipped two teeth. Installed a new timing belt and it hasn't come back since. I didn't read through this thread in super detail, but I'm not sure if you've completely inspected the timing belt or replaced it.

I wish it was kust the timing belt but unfortunately its not looking like the case. I replaced the cam gear and had the timing belt off and made sure it was all lined up but the problem still exists?
Dreamtribejay is offline   Reply With Quote
Old 05-03-2017, 10:46 PM   #68
Subie_
Scooby Specialist
 
Member#: 419354
Join Date: Apr 2015
Chapter/Region: MAIC
Location: Delaware
Vehicle:
2007 STI
Crystal gray metallic

Default P0021 code??

Quote:
Originally Posted by pet3r View Post
I had this exact same problem on my built 15 STi. Car ran just fine, idled fine, made power. Had P0017. Changed oil, changed OCV, and a lot of what you've done. I was able to see from the AP that my LHOCV was stuck at 0. It wouldn't budge. You can read my thread here if it helps: http://www.iwsti.com/forums/2-5-lite...-symptoms.html

Checked timing and it had skipped two teeth. Installed a new timing belt and it hasn't come back since. I didn't read through this thread in super detail, but I'm not sure if you've completely inspected the timing belt or replaced it.

Cool story brah

You should probably let the 2 guys you left hanging 2.5 months ago know the first reply you completely disregarded corrected your CEL.

Good looks.
Subie_ is offline   Reply With Quote
Old 05-16-2017, 09:16 AM   #69
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

Dos anyone have a OCV plug with some wires i can buy/have? The blue one that plugs into the ocv. I have reson to believe that that may be the culprit to this p0021 problem.
Dreamtribejay is offline   Reply With Quote
Old 06-03-2017, 04:00 PM   #70
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

not that anyone pry reads this anymore but id like to say that the problem was found!!1

I was driving it normal on memorial day and it started making noise from the engine like a rod knock but from the cam shaft. A couple min later the car stalled and wouldn't start. So i took it to the builder and here said the the crank seemed to have some resistance. he then dropped the oil pan and said there where a bunch of material in there including a fun BERRY and stem!!! I kid you not! Ive never heard of this. So it starved the motor of oil and its done now. He claims then its not his fault and wont cover the 10000mile motor build.
Dreamtribejay is offline   Reply With Quote
Old 06-03-2017, 11:42 PM   #71
viper_crazy
Scooby Specialist
 
Member#: 298403
Join Date: Oct 2011
Chapter/Region: W. Canada
Vehicle:
2008 WRX Premium
Spark Silver

Default

Lawsuit?
viper_crazy is offline   Reply With Quote
Old 06-04-2017, 07:19 PM   #72
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

Talking with another attorney tomorrow. Hopfully theres something we can do.
Dreamtribejay is offline   Reply With Quote
Old 06-05-2017, 01:08 AM   #73
viper_crazy
Scooby Specialist
 
Member#: 298403
Join Date: Oct 2011
Chapter/Region: W. Canada
Vehicle:
2008 WRX Premium
Spark Silver

Default

I'd be interested in how that turned out, but it's mostly curiosity and unrelated to this thread, haha
viper_crazy is offline   Reply With Quote
Old 02-10-2018, 11:37 PM   #74
Dreamtribejay
Scooby Newbie
 
Member#: 432274
Join Date: Oct 2015
Chapter/Region: MWSOC
Location: Kalamazoo MI
Vehicle:
2011 WRX
Silver

Default

Quote:
Originally Posted by viper_crazy View Post
I'd be interested in how that turned out, but it's mostly curiosity and unrelated to this thread, haha

Sorry it's been awhile before I got back on here because I finally got my car back and finished. The company who built the previous motor ended up splitting the cost of a new-build for me and I had someone who knew what they were doing do it this time. Ive had it back 3 days now!!
Dreamtribejay is offline   Reply With Quote
Old 02-13-2018, 10:19 AM   #75
Owen_
Scooby Newbie
 
Member#: 421262
Join Date: May 2015
Location: Fort Campbell, KY
Vehicle:
2015 STi
WR Blue

Default

I don't know if you've solved this or not, but I had this and a couple other cam related codes after building my engine a month or so ago.

I finally fixed it by replacing the cam gear itself. Afterward, we took apart the old cam gear and found that the rotor inside of it that is supposed to have some left/right play was completely seized and wouldn't move freely.
Owen_ 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

All times are GMT -4. The time now is 04:58 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.