Welcome to the North American Subaru Impreza Owners Club Wednesday May 27, 2015
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 07-12-2010, 06:02 PM   #1
Florin1
Scooby Specialist
 
Member#: 163625
Join Date: Nov 2007
Chapter/Region: NWIC
Location: Lynnwood, Wa.
Vehicle:
91 Legacy SS
Silver

Default HALP! N/A Subaru misfire/no fuel ISSUES.

hello all. I've searched the forum but couldn't find my exact issue/problem. Maybe someone can help. Its an '01 forester L 2.5l SOHC, with about 120K on motor and 220K on chassis. The car misfires severely on all cylinders. It feels to be starving for fuel. Taking off from a stop is SO annoying. It bucks and jerks and it has no power. (Everything Changes when i go to WOT) The car actually accelerates.

I've changed the plugs, wires, fuel filter, cats, downstream o2 sensor. Pulled out pass side injectors and cleaned them out along with the rail. Same problem. Only thing i havent done yet is dropped the fuel tank to check the sender pick up. Has anyone else ran into this issue? Please help. thanks

My other issue is; when i take off from a stop and i want to leave a little quick, i get 5 or 6 rapid clunks coming from either the diff or the transfer case or the driveshaft joint? Its a pretty bad vibration because i can feel it not just hear it. It also makes this if i'm going real slow in 1st gear up a hill, and than accelerate. Also likes to do it on snow when one of the tires breaks loose. What do you guys say? BURN it?? j/k i like the car.
* Registered users of the site do not see these ads.
Florin1 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 07-12-2010, 07:33 PM   #2
Dunkin
Scooby Specialist
 
Member#: 113496
Join Date: Apr 2006
Location: Juanita, WA
Vehicle:
...
(V) (;,,;) (V)

Default

Quote:
Originally Posted by Florin1 View Post
hello all. I've searched the forum but couldn't find my exact issue/problem. Maybe someone can help. Its an '01 forester L 2.5l SOHC, with about 120K on motor and 220K on chassis. The car misfires severely on all cylinders. It feels to be starving for fuel. Taking off from a stop is SO annoying. It bucks and jerks and it has no power. (Everything Changes when i go to WOT) The car actually accelerates.

I've changed the plugs, wires, fuel filter, cats, downstream o2 sensor. Pulled out pass side injectors and cleaned them out along with the rail. Same problem. Only thing i havent done yet is dropped the fuel tank to check the sender pick up. Has anyone else ran into this issue? Please help. thanks

My other issue is; when i take off from a stop and i want to leave a little quick, i get 5 or 6 rapid clunks coming from either the diff or the transfer case or the driveshaft joint? Its a pretty bad vibration because i can feel it not just hear it. It also makes this if i'm going real slow in 1st gear up a hill, and than accelerate. Also likes to do it on snow when one of the tires breaks loose. What do you guys say? BURN it?? j/k i like the car.


Have you replaced the upstream oxygen sensor? Do you have a scan tool that allows you to view the LTFT's and STFT's?

Do you have any other codes in the system?
Dunkin is offline   Reply With Quote
Old 07-12-2010, 08:10 PM   #3
kewlboxer2
Scooby Newbie
 
Member#: 161322
Join Date: Oct 2007
Chapter/Region: Tri-State
Location: Galeton, PA
Vehicle:
06 2.5i
Regal Blue

Default

Check the coil. Take a spray bottle of water and spray the coil when its idling. If is misfires then that is your problem.
kewlboxer2 is offline   Reply With Quote
Old 07-12-2010, 08:18 PM   #4
Florin1
Scooby Specialist
 
Member#: 163625
Join Date: Nov 2007
Chapter/Region: NWIC
Location: Lynnwood, Wa.
Vehicle:
91 Legacy SS
Silver

Default

codes are: p0301, p0302, p0303, p0304, p0170 (fuel trim bank 1), and p0130 (o2 circuit, bank1 sensor 1). This is what the Shmucks scanner told me.
Florin1 is offline   Reply With Quote
Old 07-12-2010, 08:19 PM   #5
Florin1
Scooby Specialist
 
Member#: 163625
Join Date: Nov 2007
Chapter/Region: NWIC
Location: Lynnwood, Wa.
Vehicle:
91 Legacy SS
Silver

Default

Quote:
Originally Posted by kewlboxer2 View Post
Check the coil. Take a spray bottle of water and spray the coil when its idling. If is misfires then that is your problem.
i will go try this right now, although the car seems to be misfiring at idle already... it isnt running round if that makes any sense
Did this and nothing different happened

Last edited by Florin1; 07-12-2010 at 08:38 PM.
Florin1 is offline   Reply With Quote
Old 07-12-2010, 09:51 PM   #6
Back Road Runner
Scooby Guru
 
Member#: 60082
Join Date: Apr 2004
Chapter/Region: MWSOC
Location: Minnesota
Vehicle:
2004 Forester STI
Silver

Default

Air/fuel sensor. The car runs like crap if it's bad.

Dead cold, runs good, instant it warms up a little runs crappy. Idles bad. Takes off bad. Partial throttle runs like crap. Full throttle runs great. This is a bad front O2 sensor (air/fuel).

I would also suggest checking the electrical system. Clean up all the main wire connections. Clean up the battery and all the main grounds. Check the knock sensor, because it seems to collect corrosion quite readily. Disconnect and clean up all these connections with some water and baking soda. This helps the sensors function a lot better once there is a good clean ground to everything.

Clunks and jerky drivetrain is all about bushings/mounts. You fix this by upgrading the engine mounts, dog bone, transmission mounts, crossmember bushings, rear diff outrigger and rear diff rear bushings. The front end is easy, just bolt on stuff. The rear is hard. It's all metal sleeve press fit stuff, and you have to remove the rear crossmember to do it and use a press. A simple partial fix is to fill in the gaps of these rear bushings. You can use an epoxy or similar to fill in the holes of the oem bushings and reduce the amount of compression by a lot without needing to upgrade the rear bushings. This locks down the drivetrain and makes the whole power to the ground thing very locked in.
Back Road Runner is offline   Reply With Quote
Old 07-13-2010, 06:20 PM   #7
vanquish88
Scooby Specialist
 
Member#: 165842
Join Date: Dec 2007
Chapter/Region: SCIC
Location: the ghetto
Vehicle:
1999 Gc8
Glacier white

Default

make sure your injectors are properly seated in the clip. in other words unclip them check the clip for crap and make sure they clip all the way down.

i had the same problem. started spending crazy money replacing stuff to find out nothing was wrong with them. returned everything went in with a new mind set and scanned over my car very cautiously. i relized that injector 1 wasnt on right so i reclipped it and erased the code. BAM never had a problem since.
vanquish88 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
misfire /o2 code issue cabz Normally Aspirated Powertrain 0 04-18-2009 10:03 PM
HALP! Garage door won't open, no door to inside. :( Balantz Off-Topic 78 09-26-2008 11:15 AM
Weird fueling issue. Not enough fuel, add a pump now insanely rich???A/F weirdness. Defiant Autospeed Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) 21 11-19-2007 04:30 AM
no spark & no fuel = no start Annoying Eric Normally Aspirated Powertrain 7 08-30-2005 08:58 AM
Spark Plugs, CEL's, Misfires, and UTEC issues JayGold Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 26 04-16-2003 01:35 PM


All times are GMT -4. The time now is 04:52 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2015, North American Subaru Impreza Owners Club, Inc.