Go Back   Honda-Tech > Honda and Acura Model-Specific Technical Forums > Honda Accord (1990 - 2002)
Sign in using an external account
Register Forgot Password?
Search


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
Old 05-02-2008, 10:28 PM   #1
Trial User
 
mouajacques's Avatar
 
Join Date: May 2008
Location: Murrieta, CA
Posts: 4
iTrader Rating: (0)
Default 94 Accord sohc Vtec rough idle after warm-up

94 accord ex. auto...Can anyone help with this problem? I just change the headgasket. Everything I did was correct according to Haynes manual. Head is torque to spec. All vacuum line connected. When I start the car it'll start normally. But as soon the engine is warmed up. It would idle really low..about 500-600rpm..to almost stalling the engine. I notice the the bad exhaust note(almost like insufficient fuel). The funny thing is if I drive it(above 1k rpm), its ok. The only problem if I let it idle(stop signs or traffic lights). I've clean IAC, Throttle and fast idle thermo. I'm out of idea. Does anyone know how to fix this? Thank you. Click the image to open in full size.


Modified by mouajacques at 11:14 AM 5/3/2008
mouajacques is offline   Reply With Quote
Old 05-05-2008, 06:26 PM   #2
Member
 
hondadude's Avatar
 
Join Date: Oct 2003
Location: Fayettenam, Ar, US
Posts: 3,703
iTrader Rating: (0)
Default Re: 94 Accord sohc Vtec rough idle after warm-up (mouajacques)

Is the timing correct?
maybe spray carb cleaner along the intake where it joins to the head, see if the idle changes; that would indicate a leak.
__________________
Year and model Helps get better info
My crystal ball is out of service,and
I failed Clairvoyance 101 class

hondadude is offline   Reply With Quote
Old 05-06-2008, 04:05 AM   #3
Honda-Tech Member
 
GhostAccord's Avatar
 
Join Date: Mar 2007
Location: East Coast 506, Canada
Posts: 9,885
iTrader Rating: (0)
Send a message via MSN to GhostAccord
Default Re: 94 Accord sohc Vtec rough idle after warm-up (hondadude)

Bleed your coolant system, make sure the level is correct and that there are no air bubbles in the system. Recheck your IACV. After your car has warmed up unplug the wire connector from the IAC while the car is running. If the idle changes that indicates that you need to adjust your idle speed. If it doesn't change than there is something wrong with your IACV. Could still be dirty or it could be an improper/dirty electrical connection.
GhostAccord is offline   Reply With Quote
Old 05-10-2008, 11:15 AM   #4
Trial User
 
mouajacques's Avatar
 
Join Date: May 2008
Location: Murrieta, CA
Posts: 4
iTrader Rating: (0)
Default Re: 94 Accord sohc Vtec rough idle after warm-up (mouajacques)

The timing is correct...Recheck the idle valve..clean...but this time when I start the car it would warm up correctly(for about 5-8 min) then just stall...Any help..
mouajacques is offline   Reply With Quote
Old 01-21-2009, 04:25 PM   #5
B*a*n*n*e*d
 
Join Date: Nov 2008
Posts: 206
iTrader Rating: (0)
Default Re: 94 Accord sohc Vtec rough idle after warm-up (hondadude)

Quote:
Originally Posted by GhostAccord View Post
... Recheck your IACV. After your car has warmed up unplug the wire connector from the IAC while the car is running. If the idle changes that indicates that you need to adjust your idle speed. If it doesn't change than there is something wrong with your IACV. Could still be dirty or it could be an improper/dirty electrical connection.
so, then with this test, either way the IACV has a problem. well, what is the result if there is nothing wrong with the IACV? curious to know?

atoz
AtoZ is offline   Reply With Quote
Old 01-22-2009, 02:30 AM   #6
Honda-Tech Member
 
Join Date: Dec 2008
Posts: 9
iTrader Rating: (0)
Default Re: 94 Accord sohc Vtec rough idle after warm-up

This happened to me in my 99 4cyl f23 with 200k... after warm up it dips down to 500, and sounds not so good, and nothing is turned on in that time... no AC, no radio, windows, nothing. Its completely random. But i think i might check the ignition system, maybe check the idle valve, maybe these suggestions could help you out?
__________________
-94 civic dx (rolled it)
-99 accord ex 5 spd
+Air Filter 200k mi.
cr757gsr is offline   Reply With Quote
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
96 accord idle problems genopian Honda Accord (1990 - 2002) 3 07-23-2014 07:45 PM
92 Accord Fast Idle Valve Question jkrueger2020 Honda Accord (1990 - 2002) 2 06-26-2012 05:54 AM
On going battle with P0505 idle malfunction. Now with video. amej8 Honda Civic/Del Sol (1992 - 2000) 5 05-26-2011 06:18 PM
d16z6 idle is low jdmsir4dr Honda Civic/Del Sol (1992 - 2000) 15 04-06-2010 05:07 PM
Huge problem with idle, help please!!!! ls-t del sol Acura Integra 6 09-27-2004 12:49 PM


Tags
92, accord, accorde, acura, car, fix, honda, idle, idles, low, rough, runs, speed, tl, warm, warming, warms

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
Trackbacks are On
Pingbacks are On
Refbacks are On



Join Honda-Tech.com

All times are GMT -8. The time now is 06:56 AM.



2014 Copyright, InternetBrands Inc.
Powered by vBulletin® Version 3.8.7 AC1
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