Notices
Tech Talk Anything technically related to your vehicle should be posted here. If you're looking to have work done, try one of the Regional Forums.

B18c super high constant idle.....about to give up

Thread Tools
 
Old 05-14-2011, 07:27 PM
  #1  
Registered Member
Thread Starter
 
killaofdawest's Avatar
 
Join Date: May 2010
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
killaofdawest has disabled reputation
Default B18c super high constant idle.....about to give up

have a 92 DA with alil done to it. not all that new to hondas since i knew what to put on my car, but now my car idles at 3000rpm. no matter hot or cold. need help cause ive tried taking the air adjuster thing off and tighting the idle control screw. when i unpluged the adjuster it went down to 2500rpm but was bouncy. still has yet to lower. dont even give it gas anymore cause idle is sooooo high......so any suggestions.
killaofdawest is offline  
Old 05-14-2011, 08:25 PM
  #2  
ahhhh
 
split's Avatar
 
Join Date: Nov 2002
Location: So Cal
Posts: 1,138
Likes: 0
Received 0 Likes on 0 Posts
split has a reputation beyond reputesplit has a reputation beyond reputesplit has a reputation beyond reputesplit has a reputation beyond reputesplit has a reputation beyond reputesplit has a reputation beyond reputesplit has a reputation beyond reputesplit has a reputation beyond reputesplit has a reputation beyond reputesplit has a reputation beyond reputesplit has a reputation beyond repute
Default Re: B18c super high constant idle.....about to give up

sounds like you have a vacuum leak.
split is offline  
Old 05-14-2011, 09:15 PM
  #3  
Racetracks
 
Fabrik8's Avatar
 
Join Date: Nov 2002
Location: How long is a piece of string?
Posts: 15,668
Likes: 0
Received 0 Likes on 0 Posts
Fabrik8 Fabrik8 Fabrik8 Fabrik8 Fabrik8 Fabrik8 Fabrik8 Fabrik8 Fabrik8 Fabrik8 Fabrik8
Default Re: B18c super high constant idle.....about to give up

You need enough air to idle at 3000 RPM, so it has to be coming from somewhere. Check the position of the throttle plate and also make sure that there is not preload on the throttle cable that would slightly hold the throttle plate open at idle. Those are easy things to check, so after you rule those out you can look for other things.
Fabrik8 is offline  
Old 05-14-2011, 11:11 PM
  #4  
B.E.T.P.
 
hatchblack's Avatar
 
Join Date: Sep 2006
Location: VB
Posts: 2,044
Likes: 0
Received 0 Likes on 0 Posts
hatchblack has disabled reputation
Default Re: B18c super high constant idle.....about to give up

check youtube about cleaning & tightening your fitv (fast idle thermal valve)

its under your throttle body with a plate and two screw bolts. tighten that by hand and not too rough its plastic
hatchblack is offline  
Old 05-22-2011, 03:16 AM
  #5  
Registered Member
Thread Starter
 
killaofdawest's Avatar
 
Join Date: May 2010
Posts: 9
Likes: 0
Received 0 Likes on 0 Posts
killaofdawest has disabled reputation
Default Re: B18c super high constant idle.....about to give up

Thanks For the help but it was something with the mapping. Now I'm having trouble changing the inner lights....the ones pole usually turn yellow. Problem is first off they don't even cut on....Sooo how do I change those lights or get to them first off.
killaofdawest is offline  
Old 05-25-2011, 04:02 AM
  #6  
Registered Member
 
sohc_mshue's Avatar
 
Join Date: Apr 2003
Location: Richmond VA
Posts: 2,569
Likes: 0
Received 0 Likes on 0 Posts
sohc_mshue sohc_mshue sohc_mshue sohc_mshue sohc_mshue sohc_mshue sohc_mshue sohc_mshue sohc_mshue sohc_mshue sohc_mshue
Default Re: B18c super high constant idle.....about to give up

what do you mean by you unplugged the adjuster? Do you mean the IACV? If you unplug that and it stays up then it could not be an issue with the tune. If this is the case then I would try what hatchblack said if your throttle body has a FITV.
sohc_mshue is offline  
Old 05-30-2011, 01:44 PM
  #7  
Registered Member
 
Weldmandingo's Avatar
 
Join Date: Jan 2008
Location: Hampton, Va
Posts: 2,328
Likes: 0
Received 0 Likes on 0 Posts
Weldmandingo has disabled reputation
Default Re: B18c super high constant idle.....about to give up

Originally Posted by split
sounds like you have a vacuum leak.
+1
Weldmandingo is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
FastPrelude420
Automotive Discussion
16
12-18-2006 10:06 AM
RightDiddy
Cycle Corner
26
06-30-2005 06:49 AM



Quick Reply: B18c super high constant idle.....about to give up



All times are GMT -8. The time now is 12:42 PM.