Welcome to the North American Subaru Impreza Owners Club Friday August 29, 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 > Service & Maintenance

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 12-01-2009, 04:47 PM   #1
jdmrex2416
Scooby Newbie
 
Member#: 173811
Join Date: Mar 2008
Chapter/Region: TXIC
Location: da 432 tx yo!
Vehicle:
2005 stg2wrx catless
obp

Default blue smoke pcv cel??

whats up guys i have an 05 wrx w/02 motor....i blew my last motor and ended up buying an 02 motor with 49k miles. my plan was to swap it, make sure everything was working smoothly then sell it. well right after the swap everything was running perfect except for a pcv cel (positive crankcase ventilation valve [blow-by] function problem). now after two weeks with this motor i notice a small blue puff of smoke after i take off. anytime i sit at idle its clean untill i give it a rev, then another blue puff comes out. i have not lost any coolant or oil. i think i might have overfilled it with oil but not by much and i also replaced the pcv valve and the cel is still there i reflashed the ecu and the cel returns 3 seconds after it turns over. any help is appreciated.

mods:
stage 2 cobb ap
tbe-catless
aps bov 50/50
* Registered users of the site do not see these ads.
jdmrex2416 is offline   Reply With Quote
Old 12-02-2009, 11:06 AM   #2
Sirlight
Scooby Newbie
 
Member#: 129696
Join Date: Oct 2006
Default

Before you installed this second PCV valve, did it click back and forth when shook ? If not that valve may be stuck as well. Was the second PCV valve purchased brand new ?

How long was this motor sitting before you ran it ? Have you done a leak down/ compression test ?

Check the PCV valve again as it is the cheapest / easiest solution.

Another possibility is that the valve seals are gone. Do compression / leak to narrow it down if PCV is OK.
Sirlight is offline   Reply With Quote
Old 12-02-2009, 11:50 AM   #3
jdmrex2416
Scooby Newbie
 
Member#: 173811
Join Date: Mar 2008
Chapter/Region: TXIC
Location: da 432 tx yo!
Vehicle:
2005 stg2wrx catless
obp

Default

the motor was sitting for about 7 months before i ran it. the pcv was brand new and even the old one was working perfect before i replaced it. how much is it usually to get a compression/leak down test? where can i get one done??
jdmrex2416 is offline   Reply With Quote
Old 12-02-2009, 01:18 PM   #4
Sirlight
Scooby Newbie
 
Member#: 129696
Join Date: Oct 2006
Default

any local decent auto mechanic should be able to do these. Go to someone you or your family trusts and that you know does good work. I would opt to go to a Subaru specialist shop personally. Have them give you a quote for a leak down test.

A leak down test involves attaching a fitting to the spark plug hole, then filling the compression chamber with compressed air to see if it escapes the system ( via rings, valve seals, headgaskets etc ). where air can escape, oil can escape. A good shop should also be able to tell you where it is leaking from if it is.

The only thing that seems kinda odd is that the PCV cel is on.
Sirlight is offline   Reply With Quote
Old 12-02-2009, 06:18 PM   #5
jdmrex2416
Scooby Newbie
 
Member#: 173811
Join Date: Mar 2008
Chapter/Region: TXIC
Location: da 432 tx yo!
Vehicle:
2005 stg2wrx catless
obp

Default im begging!!!

alright after lots and lots of research i figured out why i am getting the code:

the 04-05 motor has a sensor on the turbo inlet from the pcv and the 02-03 does not. since im running an 04-05 ecu and 02-03 motor the computer believes the sensor is unplugged therefor the cel. now i know there has to be some way to get passed this. i need an electrician gurus help. please ive searched so much and found nothing!!!! this is "NASIOC" everything is solved here!!!! i want this thread to have the solution to this!!!!!

please guys i suck with wires and electric work or i would be trying to figure it out myself! i know someone in the subaru world can figure it out!

thanks in advance

jake
jdmrex2416 is offline   Reply With Quote
Old 12-03-2009, 04:16 PM   #6
Sirlight
Scooby Newbie
 
Member#: 129696
Join Date: Oct 2006
Default

Find out what the normal output of the sensor is supposed to be and solder together a resistor with the correct normal operational voltage. Get the pinout of the clip as well so you know where power and ground are, and find some pins to make your own sensor dummy or just solder it inline. I dont see why that woulden't work. Similar to the O2 sensor fix.
Sirlight is offline   Reply With Quote
Old 12-05-2009, 02:44 PM   #7
jdmrex2416
Scooby Newbie
 
Member#: 173811
Join Date: Mar 2008
Chapter/Region: TXIC
Location: da 432 tx yo!
Vehicle:
2005 stg2wrx catless
obp

Default

thats exactly what i DONT know how to do. i know what a resistor is and thats about it....im telling you i really dont understand wires and electricity... can you repeat in a little more "noobish" manner? haha
jdmrex2416 is offline   Reply With Quote
Old 12-05-2009, 02:47 PM   #8
jdmrex2416
Scooby Newbie
 
Member#: 173811
Join Date: Mar 2008
Chapter/Region: TXIC
Location: da 432 tx yo!
Vehicle:
2005 stg2wrx catless
obp

Default

wait, better idea...how much would you charge me to make me a "dummy sensor"??
jdmrex2416 is offline   Reply With Quote
Old 12-15-2009, 11:25 PM   #9
jdmrex2416
Scooby Newbie
 
Member#: 173811
Join Date: Mar 2008
Chapter/Region: TXIC
Location: da 432 tx yo!
Vehicle:
2005 stg2wrx catless
obp

Default

Bump still trying to figure this out. Is there any way I can buy the sensor that is supposed to be there, wire it in somehow and then trick it into thinking that it's plugged in and working??
jdmrex2416 is offline   Reply With Quote
Old 12-16-2009, 12:02 PM   #10
jdmrex2416
Scooby Newbie
 
Member#: 173811
Join Date: Mar 2008
Chapter/Region: TXIC
Location: da 432 tx yo!
Vehicle:
2005 stg2wrx catless
obp

Default

anyone????
jdmrex2416 is offline   Reply With Quote
Old 12-18-2009, 06:06 AM   #11
indytruckboy
Scooby Specialist
 
Member#: 192599
Join Date: Oct 2008
Chapter/Region: MAIC
Location: Reading, PA
Vehicle:
2004 STI
2007 Outback Wagon

Default

you can remove any CEL with good EM
indytruckboy 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
White smoke with CEL code P0031 Seanohue Service & Maintenance 4 04-27-2009 09:54 PM
White/blue smoke on start - blue smoke on acceleration bcblues Factory 2.5L Turbo Powertrain 17 11-22-2006 12:33 AM
Blue smoke after turbo install 99SubRs Normally Aspirated with bolt-on Forced Induction Powertrain 7 09-20-2002 10:44 PM
puff of blue smoke selector37 Factory 2.0L Turbo Powertrain 1 08-27-2002 09:37 PM
Kit installed. Now there's blue smoke out the exhaust Drac9 Normally Aspirated with bolt-on Forced Induction Powertrain 7 07-03-2002 03:01 AM


All times are GMT -4. The time now is 11:04 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.