Go Back   Honda-Tech > Honda and Acura Model-Specific Technical Forums > Ridgeline : MDX : Odyssey : Pilot : RDX
Sign in using an external account
Register Forgot Password?
Search


Welcome to Honda-Tech!
Welcome to Honda-Tech.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community 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 fast, simple and absolutely free so please, join the Honda-Tech community today!


Reply
 
 
 
submit to reddit
 
Thread Tools Search this Thread
Old 01-21-2009, 04:37 PM   #1
rasta420
Honda-Tech Member
Garage is empty, add now
 
rasta420's Avatar
 
Join Date: Oct 2001
Location: east coast, usa
Posts: 1,248
iTrader Rating: (0)
Send a message via AIM to rasta420
Icon6 2003 Odyssey idle surging P0505 P01129

My friend has a 2003 Honda Odyssey. I checked the codes today and P0505 and P1129 came up. The check engine light and TCS lights were on, and the idle was surging up and down at idle.

Is this a common problem or is there a TSB on this issue? What should I check/replace?

Thanks!
__________________
90 CRX Si parts -----> http://www.honda-tech.com/zerothread?id=1469873
rasta420 is offline   Reply With Quote
Old 01-21-2009, 05:48 PM   #2
Ross 2.0
In a Junkyard near you.
Garage is empty, add now
 
Ross 2.0's Avatar
 
Join Date: Mar 2004
Location: Richmond, Va
Posts: 5,051
iTrader Rating: (0)
Default Re: 2003 Odyssey idle surging P0505 P01129

Clean or replace the IAC valve and clear the codes. Very common issue.
For the heck of it check the power steering switch wires at the bottom passengers side of the engine bay too.
__________________
My signature
Ross 2.0 is offline   Reply With Quote
Old 01-23-2009, 03:46 AM   #3
rasta420
Honda-Tech Member
Garage is empty, add now
 
rasta420's Avatar
 
Join Date: Oct 2001
Location: east coast, usa
Posts: 1,248
iTrader Rating: (0)
Send a message via AIM to rasta420
Default Re: 2003 Odyssey idle surging P0505 P01129

I took off the IAC valve and reset the check engine light last night. Upon first start, the engine was idling fine for about a minute then started hunting up and down again.

Would replacing the IAC valve fix this hunting idle problem? How can I test the old one to make sure it is faulty?

What am I looking for as far as the power steering switch wires? If they are disconnected? What would that have to do with the problem?
__________________
90 CRX Si parts -----> http://www.honda-tech.com/zerothread?id=1469873
rasta420 is offline   Reply With Quote
Old 01-23-2009, 05:08 AM   #4
Ross 2.0
In a Junkyard near you.
Garage is empty, add now
 
Ross 2.0's Avatar
 
Join Date: Mar 2004
Location: Richmond, Va
Posts: 5,051
iTrader Rating: (0)
Default Re: 2003 Odyssey idle surging P0505 P01129

You'll need to replace the IAC then.
If the wires are broken the van will idle up and down but more randomly.
__________________
My signature
Ross 2.0 is offline   Reply With Quote
Old 09-28-2009, 01:48 PM   #5
gregg886
New User
Garage is empty, add now
 
Join Date: Sep 2009
Posts: 1
iTrader Rating: (0)
Default Re: 2003 Odyssey idle surging P0505 P01129

Quote:
Originally Posted by rasta420 View Post
I took off the IAC valve and reset the check engine light last night. Upon first start, the engine was idling fine for about a minute then started hunting up and down again.

Would replacing the IAC valve fix this hunting idle problem? How can I test the old one to make sure it is faulty?

What am I looking for as far as the power steering switch wires? If they are disconnected? What would that have to do with the problem?
What size socket or wrench is needed for the one bolt?
gregg886 is offline   Reply With Quote
Old 08-04-2010, 02:59 PM   #6
MiniVanDad
Trial User
Garage is empty, add now
 
Join Date: Aug 2010
Posts: 2
iTrader Rating: (0)
Default Re: 2003 Odyssey idle surging P0505 P01129

I need to either clean or replace my IACV... but I can't find it.

Can you post a pic of where it is? I have taken pitcures of my van and you can view them here... http://picasaweb.google.com/Iamtheitguy/VanOdyssey2002
MiniVanDad is offline   Reply With Quote
Old 08-04-2010, 04:18 PM   #7
bryse68
Honda-Tech Member
1991 Honda CRX
 
Join Date: Aug 2004
Location: Hilo, HI, USA
Posts: 492
iTrader Rating: (0)
Default Re: 2003 Odyssey idle surging P0505 P01129

the IAC valve is located under the throttle body. check for broken power steering pressure switch wires....
bryse68 is offline   Reply With Quote
Old 08-04-2010, 04:30 PM   #8
MiniVanDad
Trial User
Garage is empty, add now
 
Join Date: Aug 2010
Posts: 2
iTrader Rating: (0)
Default Re: 2003 Odyssey idle surging P0505 P01129

yeah I found it, but since it is upside down to me I don't have what it takes to get it off... but where are the power steering wires you mentioned?
MiniVanDad is offline   Reply With Quote
Old 08-05-2010, 05:10 AM   #9
NDNV
Honda-Tech Member
Garage is empty, add now
 
NDNV's Avatar
 
Join Date: Feb 2009
Location: CANADA
Posts: 91
iTrader Rating: (0)
Default Re: 2003 Odyssey idle surging P0505 P01129

The power steering pressure switch can be accessed behind the passenger's front wheel. If one of the 2 wires are broken, you can get an erratic idle while stopped. Check the connector and the wires. Here are some pictures of the PS connector:

http://www.odyclub.com/forums/attach...&postid=291641 the harness is disconnected here.

http://www.odyclub.com/forums/attach...&postid=349850 one of the wires are broken here.
NDNV is offline   Reply With Quote
 
 
 
submit to reddit
Reply

Tags
2000, 2001, civic, code, honda, iac, idle, idling, odessy, odyssey, p0505, problems, replacement, si, valve

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 -8. The time now is 06:07 AM.



2008 Copyright, InternetBrands Inc.
Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.

Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.
Emails & Contact Details