Intermittent CEL, P0026 - Subaru Outback - Subaru Outback Forums
 
LinkBack Thread Tools Rate Thread
post #1 of 7 (permalink) Old 02-25-2013, 09:12 AM Thread Starter
Registered User
 
Join Date: Oct 2012
Location: NJ
Car: 2005 Outback 3.0R Sedan
Posts: 18
Feedback Score: 0 reviews
Intermittent CEL, P0026

Hey guys! My '05 Outback Sedan 3.0R keeps throwing a P0026 code (Intake valve control solenoid circuit range/performance bank 1)for, what seems like, no reason at all. The oil level is where is should be, there doesn't look like there are any oil leaks, and the sensors are all properly connected. Any suggestions on how to fix this? It's driving me nuts. Thanks.

2005 Outback Sedan 3.0r, Automatic
Incendio is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 02-25-2013, 12:47 PM
Moderator
 
cardoc's Avatar
 
Join Date: Aug 2012
Location: Austin, Texas
Car: 2001 VDC/SC One of a Kind
Posts: 10,420
Feedback Score: 2 reviews
It may be a bad or leaking pressure switch. Number 5 in the pic.
Attached Thumbnails
Click image for larger version

Name:	vvl_press_switch.gif
Views:	606
Size:	8.6 KB
ID:	27581  
cardoc is offline  
post #3 of 7 (permalink) Old 02-25-2013, 05:45 PM Thread Starter
Registered User
 
Join Date: Oct 2012
Location: NJ
Car: 2005 Outback 3.0R Sedan
Posts: 18
Feedback Score: 0 reviews
Thanks. Is there anything special to removing the pressure switch?

2005 Outback Sedan 3.0r, Automatic
Incendio is offline  
post #4 of 7 (permalink) Old 02-25-2013, 10:34 PM
Moderator
 
cardoc's Avatar
 
Join Date: Aug 2012
Location: Austin, Texas
Car: 2001 VDC/SC One of a Kind
Posts: 10,420
Feedback Score: 2 reviews
No. Take the air filter box out of the way, unplug it, remove, replace.
cardoc is offline  
post #5 of 7 (permalink) Old 02-26-2013, 08:03 AM
Registered User
 
Join Date: Jun 2006
Location: Eastern ON Canada
Car: 07 OBW 2.5i D-4AT
Posts: 9,580
Feedback Score: 5 reviews
Incendio:

Further to cardoc's suggestions, check around the pressure switch for visible oil leakage, especially at the joint between the metal base and the plastic upper part, and at the connector at the top.

Also, if you have a digital multi-meter, could you check the resistance of the switch between the terminal at the top and the metal base/engine block when the engine is off? I suspect that sometimes the codes (P0026 and P0028) experienced with the variable valve lift mechanisms might be related to deterioration of the contacts inside the switches but need data to confirm. See my thread: Variable Valve Lift oil pressure switch resistance
plain OM is online now  
post #6 of 7 (permalink) Old 02-26-2013, 11:54 AM Thread Starter
Registered User
 
Join Date: Oct 2012
Location: NJ
Car: 2005 Outback 3.0R Sedan
Posts: 18
Feedback Score: 0 reviews
Quote:
Originally Posted by plain OM View Post
Incendio:

Further to cardoc's suggestions, check around the pressure switch for visible oil leakage, especially at the joint between the metal base and the plastic upper part, and at the connector at the top.

Also, if you have a digital multi-meter, could you check the resistance of the switch between the terminal at the top and the metal base/engine block when the engine is off? I suspect that sometimes the codes (P0026 and P0028) experienced with the variable valve lift mechanisms might be related to deterioration of the contacts inside the switches but need data to confirm. See my thread: Variable Valve Lift oil pressure switch resistance
I posted this in your thread, but the multimeter reading was 29.8.

2005 Outback Sedan 3.0r, Automatic
Incendio is offline  
post #7 of 7 (permalink) Old 03-03-2013, 02:36 PM
Registered User
 
Join Date: Jun 2006
Location: Eastern ON Canada
Car: 07 OBW 2.5i D-4AT
Posts: 9,580
Feedback Score: 5 reviews
30 Ohms is a lot higher than the 10 Ohms I observed. (Thanks for reporting in the other thread.)

Did you identify where the leak is coming from, and if the switch was replaced, did that resolve the problem?
plain OM is online now  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Subaru Outback - Subaru Outback Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Rate This Thread
Rate This Thread:



Posting Rules  
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome