Welcome to the North American Subaru Impreza Owners Club Friday March 29, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Normally Aspirated with bolt-on Forced Induction 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.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 08-29-2005, 02:31 AM   #1
BAMA RS
Scooby Newbie
 
Member#: 877
Join Date: Feb 2000
Chapter/Region: South East
Location: Orlando, FL
Vehicle:
1998 2.5RS
BDP

Default IAC location?

I've been reading some threads about cleaning the IAC but am unsure where it is located on the RS. I'm chasing a hunting idle/stalling problem and figured that would be a good place to start. I'm guessing it is just below the TPS(?) on the TB. Is that correct? Any tips on how to clean it? Thanks



Cameron
* Registered users of the site do not see these ads.
BAMA RS is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 08-29-2005, 03:43 AM   #2
Drac9
Scooby Specialist
 
Member#: 9861
Join Date: Sep 2001
Chapter/Region: RMIC
Location: Colorado Springs, CO
Vehicle:
1999 2.35 RS-T w/NOS
Hybrid Rally Blue Pearl

Default

On the 98 RS it's seperate from the throttle body- It's located to the side of the tb, near the crankcase pcv vent.
Drac9 is offline   Reply With Quote
Old 08-29-2005, 03:18 PM   #3
BAMA RS
Scooby Newbie
 
Member#: 877
Join Date: Feb 2000
Chapter/Region: South East
Location: Orlando, FL
Vehicle:
1998 2.5RS
BDP

Default

Thanks. Would the IAC cause the car to die stall while driving? I've had it stall while i was doing 50mph last night and a few times today while driving slower. Thanks
BAMA RS is offline   Reply With Quote
Old 08-29-2005, 03:41 PM   #4
Master2192
RIP 10/12/83 to 02/10/08
Scooby Specialist
 
Member#: 83254
Join Date: Mar 2005
Chapter/Region: NWIC
Location: Roy, Washington
Vehicle:
98 2.5 RS
04 WRX

Default

Quote:
Originally Posted by BAMA RS
Thanks. Would the IAC cause the car to die stall while driving? I've had it stall while i was doing 50mph last night and a few times today while driving slower. Thanks
No, that sounds like an air leak after the MAF sensor...
Master2192 is offline   Reply With Quote
Old 08-29-2005, 05:43 PM   #5
BAMA RS
Scooby Newbie
 
Member#: 877
Join Date: Feb 2000
Chapter/Region: South East
Location: Orlando, FL
Vehicle:
1998 2.5RS
BDP

Default

I have a hose from the BOV to the intake and a hose from the IAC to the intake. Neither of those appear to be leaking. If they did, wouldn't the car constantly stall as opposed to occasionally stalling? I drove about an hour nonstop last night before the car stalled while i was doing 50. After i restarted the car, it never stalled the rest of the night. When it stalled, i was able to downshift into fourth and bring the revs up but the car wouldn't accelerate.
BAMA RS is offline   Reply With Quote
Old 08-29-2005, 07:20 PM   #6
Master2192
RIP 10/12/83 to 02/10/08
Scooby Specialist
 
Member#: 83254
Join Date: Mar 2005
Chapter/Region: NWIC
Location: Roy, Washington
Vehicle:
98 2.5 RS
04 WRX

Default

Quote:
Originally Posted by BAMA RS
I have a hose from the BOV to the intake and a hose from the IAC to the intake. Neither of those appear to be leaking. If they did, wouldn't the car constantly stall as opposed to occasionally stalling? I drove about an hour nonstop last night before the car stalled while i was doing 50. After i restarted the car, it never stalled the rest of the night. When it stalled, i was able to downshift into fourth and bring the revs up but the car wouldn't accelerate.
That instead, sounds more like a fuel issue. Bad pump or a plugged line. But i think it would go really lean and throw a CEL...
Master2192 is offline   Reply With Quote
Old 08-30-2005, 05:36 PM   #7
BAMA RS
Scooby Newbie
 
Member#: 877
Join Date: Feb 2000
Chapter/Region: South East
Location: Orlando, FL
Vehicle:
1998 2.5RS
BDP

Default

Quote:
Originally Posted by Master2192
That instead, sounds more like a fuel issue. Bad pump or a plugged line. But i think it would go really lean and throw a CEL...
Me too. No CE light so far. It happens so randomly that it's hard to pinpoint one thing. I changed the fuel filter today and it ran without issue when i accidently left my gas cap off ( ). When i put the gas cap back on, it stalled a time or two during idle when going out for a drive.
BAMA RS is offline   Reply With Quote
Old 08-30-2005, 06:13 PM   #8
Master2192
RIP 10/12/83 to 02/10/08
Scooby Specialist
 
Member#: 83254
Join Date: Mar 2005
Chapter/Region: NWIC
Location: Roy, Washington
Vehicle:
98 2.5 RS
04 WRX

Default

In the N/A forums there was another thread about a stall issue. Was because of the O2 sensor. Kinda hard to pinpoint when its intermittent and your not getting a CEL
Master2192 is offline   Reply With Quote
Old 09-01-2005, 01:02 AM   #9
BAMA RS
Scooby Newbie
 
Member#: 877
Join Date: Feb 2000
Chapter/Region: South East
Location: Orlando, FL
Vehicle:
1998 2.5RS
BDP

Default

I hooked up my wideband O2 tonight. While i was cruising my AFRs were in the 11s and then all of a sudden the wideband read "lean". That's when the car stalled. What would cause me to go from AFRs in the 11s to suddenly lean like that?
BAMA RS is offline   Reply With Quote
Old 09-01-2005, 10:07 AM   #10
Master2192
RIP 10/12/83 to 02/10/08
Scooby Specialist
 
Member#: 83254
Join Date: Mar 2005
Chapter/Region: NWIC
Location: Roy, Washington
Vehicle:
98 2.5 RS
04 WRX

Default

Want me to make a list??

TPS, Fuel pump, intermittent clogged filter on the fuel pump or the fuel filter, bad O2 sensor, bad MAF sensor

Anything that has to do with the control of the fuel. Most of those should throw a CEL. If i were you, i'd probably pull out the fuel pump and check inside the tank and see if you've got anything in there that could be getting sucked to the filter on the pump. You could also have a wire that rubbed through and is grounding out. Pretty much, your going to have to check one thing at a time to find the problem.
Master2192 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
IAC for 02 wrx graphicsman Private 'Wanted' Classifieds 1 06-03-2010 08:58 PM
IAC inlet hose location. Victor1620 Engine Management & Tuning 0 03-31-2009 12:31 PM
Location IAC on 2002 RS imprezkid Normally Aspirated Powertrain 2 12-19-2006 10:13 PM
can't locate the IAC valve for the life of me... discounteggroll Service & Maintenance 1 06-08-2006 08:15 PM
98 ECU, open iac and closed iac (need help wiring a link) Keith Subaru Conversions 5 09-02-2005 08:49 PM

All times are GMT -4. The time now is 11:19 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.