Welcome to the North American Subaru Impreza Owners Club Sunday May 3, 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 > Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L 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 10-27-2005, 06:28 PM   #1
Impr3zy0u
Scooby Specialist
 
Member#: 93404
Join Date: Aug 2005
Location: MI
Vehicle:
2002 WRX
Aspen White

Default screwed idle.

Ok i cant figure out what it going on with my idle and its pissing me off. I really dont want to take is to the dealer. Anyway so when i start my car in the morning the idle is fine when its worming up at like 1500 rpms, but if i take off and come to a stop sighn the idle will bouce rapidly like 4 times then stedy off. Also when the engine is at normal idle speed but not 100% wormed up the vacume is a couple psi less then when its fully worm, not sure if this is normal. Every time i let off the gas the idle will dip down alittle past where its supposed to go and the car shakes alittle. Also when its just idleing normal it seems to be more rough and not as steady as in the past. I cleaned the sensor in the intake with alchol, and the IAC valve with gas, and that seemed to make it worse. I know that the sensors are atleast functioning because when i unplug them the idle gets even worse. ideas please
* Registered users of the site do not see these ads.
Impr3zy0u is offline   Reply With Quote
Old 10-27-2005, 06:51 PM   #2
cdvma
Scooby Specialist
 
Member#: 21980
Join Date: Jul 2002
Chapter/Region: NESIC
Location: Central MA
Vehicle:
2002 PSM WRX (Sold)
2009 BMW X5

Default

Do you have any modifications? Have you tried reseting the ECU?
cdvma is offline   Reply With Quote
Old 10-27-2005, 06:59 PM   #3
EagleRockWrex
Scooby Specialist
 
Member#: 95780
Join Date: Sep 2005
Chapter/Region: SCIC
Location: Pasadena, CA
Vehicle:
2008 Infinity G37S
Ivory/Black

Default

vaccuum leak
EagleRockWrex is offline   Reply With Quote
Old 10-27-2005, 07:03 PM   #4
silentbob343
Scooby Specialist
 
Member#: 57307
Join Date: Mar 2004
Default

soooo many things. I had an idle problem and the FSM threw out about 20-30 things to look at. I would check for vaccuum leak first and pray it's not an IAC problem as they cost a bit of money, at least for my car.
silentbob343 is offline   Reply With Quote
Old 10-27-2005, 07:47 PM   #5
Impr3zy0u
Scooby Specialist
 
Member#: 93404
Join Date: Aug 2005
Location: MI
Vehicle:
2002 WRX
Aspen White

Default

i did reset the ecu, i was thinking a vacume leak but the vacume goes normal once its wormed up "-18, -19", when its cold its at like -14. Mods are removed sliencer, downpipe, and catback. Stock up-pipe. Thats about it engine related. How could i check for a vacume leak. I looked around for a bit and didnt see anything. Thanks.
Impr3zy0u is offline   Reply With Quote
Old 10-27-2005, 08:00 PM   #6
cdvma
Scooby Specialist
 
Member#: 21980
Join Date: Jul 2002
Chapter/Region: NESIC
Location: Central MA
Vehicle:
2002 PSM WRX (Sold)
2009 BMW X5

Default

Spray carb cleaner (not insanely) around vacuum hoses and on parts of the intake. If the engine revs up when you spray it somewhere - bingo thats your leak.
cdvma is offline   Reply With Quote
Old 10-27-2005, 08:18 PM   #7
Impr3zy0u
Scooby Specialist
 
Member#: 93404
Join Date: Aug 2005
Location: MI
Vehicle:
2002 WRX
Aspen White

Default

awesome, thanks!!
Impr3zy0u is offline   Reply With Quote
Old 10-28-2005, 01:53 AM   #8
spongejosh
Scooby Specialist
 
Member#: 62783
Join Date: May 2004
Chapter/Region: RMIC
Location: Saudi Aurora, CO
Vehicle:
2002 WRX
Midnight Black Pearl

Default

did you use a new gasket on the iacv after you cleaned it?

josh
spongejosh is offline   Reply With Quote
Old 10-28-2005, 10:32 AM   #9
Impr3zy0u
Scooby Specialist
 
Member#: 93404
Join Date: Aug 2005
Location: MI
Vehicle:
2002 WRX
Aspen White

Default

yes..
Impr3zy0u 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
My Outside temperature display = screwed after new radio? Myth21 Electrical & Lighting 2 06-03-2010 04:08 PM
HELP!!! Screwed up idle after clutch install! BenBortner Normally Aspirated Powertrain 10 06-20-2005 10:56 AM
HELP!!! Screwed up idle after clutch install! BenBortner North West Impreza Club Forum -- NWIC 1 06-19-2005 06:15 PM
Idle screw benjaminetanyahoo Normally Aspirated with bolt-on Forced Induction Powertrain 9 06-19-2004 11:42 AM
Where is/ or is there an idle adjustment screw for 02' Wrx? PaulRex Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 5 02-14-2003 06:19 PM


All times are GMT -4. The time now is 10:31 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.