Honda Prelude Forum
 
Go Back   Honda Prelude Forum > Tech-Talk > 5th Gen Honda Prelude

Thread Title
cleaned IAC now idles low and stalls, worse than before

 
Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 07-31-2011, 05:40 PM
Bronze Member
 
Join Date: Nov 2007
Posts: 162
iTrader: (0)
silverlude80 is on a distinguished road
cleaned IAC now idles low and stalls, worse than before

Hey guys,

I did a lot of research before starting this project, so please read in full w/out judgement.

I have had a stalling problem that started recently as I pull up to lights and engage the clutch, rpms would drop and the car would stall or come very close to it. I replaced the IAT because it was throwing a code, and that problem slowed down a lot.

I then decided to clean my egr which was filthy. After I cleaned it and reinstalled, the problem was almost fixed (I would say 85%. I figured while I am working on this issue, I may as well clean the IAC and call it a day. Removed and cleaned it no problem, reinstalled and started the lude up.

The idle was smooth and perfect with no shaking at 750-800ish before I removed and cleaned the IAC. After, the rpms were down to 500-600 and very rough idle, prone to stall very often. I reset the ecu and figured maybe it needs to realign, or relearn but it did not seem to help.

My first guess was I should have left the iac off to air dry 20 min or so instead of instantly reinstalling. I checked all the lines multiple times to see if I caused a vacuum leak somewhere by mistake and nothing. I did some more research and decided a gasket may be the answer (it did not have one on when I removed it but it was mentioned to replace before reinstalled on the forums).

Couldn't find the gasket so as brilliant as I am, I decided to get some gasket maker. Basically the gasket maker gunked up the entire iac and screen causing more harm than the original carbon before cleaning. I did my best to clean it out and made a tear in the screen by accident.

I am now waiting for it to dry and will be reinstalling it to see what happens. I am selling my car and I wanted it to be right for the person who buys it so he/she doesn't have to deal with any small issues. Any help would greatly be appreciated.
Reply With Quote
  #2 (permalink)  
Old 07-31-2011, 05:40 PM
Bronze Member
 
Join Date: Nov 2007
Posts: 162
iTrader: (0)
silverlude80 is on a distinguished road
Re: cleaned IAC now idles low and stalls, worse than before

update: No change after letting it dry 30 min.

I loosened the bolts on the iac a little to create a purposeful vacuum;air leek and viola, perfect idle.

Test drove it and everything was great, perfect idle, no stall out, small rpm drop when engaging clutch towards a light like it used to be.

I have no idea why this worked being that it had no gasket before i cleaned it. I will now be ordering the gasket for it, should that work? If not I will put a washer in between the iac to keep that vacuum leak permanent.

Any thoughts or drawbacks to this? Did not seem to effect power or drivability at all.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Car stalls on Drive r6tanz 5th Gen Honda Prelude 23 12-06-2010 10:47 AM
Preventing rust from getting worse? BlueSi93 4th Gen Honda Prelude 7 10-04-2010 09:30 PM
87 SI Stalls Under Accleration mmightyy 2nd Gen Honda Prelude 7 06-23-2009 08:44 PM
Lude stalls H22Juwel 4th Gen Honda Prelude 7 06-24-2008 01:05 PM
Exhaust rattle? or something worse davidhughes32 5th Gen Honda Prelude 10 11-17-2007 06:02 PM


All times are GMT -4. The time now is 07:04 PM.



Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors


Copyright © 2006-2009 PreludeZone.com All Rights Reserved.