Welcome to the North American Subaru Impreza Owners Club Thursday November 27, 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 > Normally Aspirated Powertrain

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 08-03-2012, 10:45 PM   #1
Jutboy
Scooby Newbie
 
Member#: 114371
Join Date: May 2006
Location: Andover, CT
Question P440 CEL - What do I do?

Emission System Control Error. Not sure how to even approach this....I looked around for any hoses with leaks. Checked the gas tank filler to make sure it didn't have any holes....everything seems fine.

Any ideas? I would greatly appreciate it.

-J

97 Impreza OB - Auto 2.2
* Registered users of the site do not see these ads.
Jutboy is offline   Reply With Quote
Old 08-09-2012, 09:46 PM   #2
Jimdew
Scooby Newbie
 
Member#: 328640
Join Date: Aug 2012
Default

My expereince......

My filler neck was rusted to hell. I replaced it, but from a different year legacy, and had some trouble figuring out what to do with the two extra vent hoses I suddenly had no home for. I ended up looping them together and my code went away and I could fill my tank without the pump shutting down.

There could be pinholes in your filler neck, or the vent lines from the tank. Us in the north have problems with filler necks rotting out from road salt, and the fact the plastic protector holds all the crud and salt against the filler neck.

Mine was so bad, the valve that was supposed to be on the filler neck that the two vent lines connected to was GONE!!!!

Other years are slightly different.

Mine is a 98 legacy wagon 2.2L 4eat
Jimdew is offline   Reply With Quote
Old 08-09-2012, 09:58 PM   #3
cal_look_zero
Scooby Specialist
 
Member#: 294461
Join Date: Sep 2011
Chapter/Region: NWIC
Location: Grass Pants, OR
Vehicle:
1997 Outback Sport
383hp/345tq

Default

cal_look_zero is offline   Reply With Quote
Old 08-10-2012, 02:27 AM   #4
bugeyetex
Scooby Specialist
 
Member#: 283815
Join Date: May 2011
Chapter/Region: TXIC
Location: San Antonio
Vehicle:
2003 psm wrx wagon
Built Fuji Tough

Default

Quote:
Originally Posted by Jimdew View Post
My expereince......

My filler neck was rusted to hell. I replaced it, but from a different year legacy, and had some trouble figuring out what to do with the two extra vent hoses I suddenly had no home for. I ended up looping them together and my code went away and I could fill my tank without the pump shutting down.

There could be pinholes in your filler neck, or the vent lines from the tank. Us in the north have problems with filler necks rotting out from road salt, and the fact the plastic protector holds all the crud and salt against the filler neck.

Mine was so bad, the valve that was supposed to be on the filler neck that the two vent lines connected to was GONE!!!!
This reminded me of a time when I was filling up at the gas station only to look down and notice i was in the middle of a steadily growing puddle of gasoline... this one was a cracked neck on the tank.
bugeyetex is offline   Reply With Quote
Old 06-10-2013, 02:49 PM   #5
Volks826
Scooby Newbie
 
Member#: 359062
Join Date: Jun 2013
Default

i have the same problem, i have a 2004 impreza that i just bought two days ago. its throwing a evap code, the inside of my car smells like gasoline,im getting horrible gas mileage and my idling is off it either idles at 700 to 800 rpms or goes up to 2000 rpms, the guy i bought it from replaced the fuel pump and gas cap. any ideas?
Volks826 is offline   Reply With Quote
Old 06-10-2013, 05:51 PM   #6
GrundleJuice
NASIOC Supporter
 
Member#: 165749
Join Date: Dec 2007
Chapter/Region: South East
Location: stupid Florida
Vehicle:
2007 No YELLING
on the bus!

Default

Quote:
Originally Posted by Volks826 View Post
i have the same problem, i have a 2004 impreza that i just bought two days ago. its throwing a evap code, the inside of my car smells like gasoline,im getting horrible gas mileage and my idling is off it either idles at 700 to 800 rpms or goes up to 2000 rpms, the guy i bought it from replaced the fuel pump and gas cap. any ideas?
There is a rather complex evap system on that car with at least one electrical solenoid and other plumbing. Plenty of places to have problems. Most of It is located under the trunk floor on the passenger side if you want to take a look for any obvious signs of damage or disconnected hoses. Most of it is visible by just sliding under the rear bumper.
GrundleJuice is offline   Reply With Quote
Old 06-10-2013, 10:06 PM   #7
Volks826
Scooby Newbie
 
Member#: 359062
Join Date: Jun 2013
Default

Well the guy who i bought it from said that the code was on before he even did the fuel pump...
Volks826 is offline   Reply With Quote
Old 06-10-2013, 10:48 PM   #8
GrundleJuice
NASIOC Supporter
 
Member#: 165749
Join Date: Dec 2007
Chapter/Region: South East
Location: stupid Florida
Vehicle:
2007 No YELLING
on the bus!

Default

Quote:
Originally Posted by Volks826 View Post
Well the guy who i bought it from said that the code was on before he even did the fuel pump...
That doesn't rule out anything except the fuel cap and pump (assuming they were both good replacements) Since they are new replacements
GrundleJuice 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 01:31 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.