S2000 Under The Hood S2000 Technical and Mechanical discussions.

Rough idle when its cold?

 
Old 02-09-2019, 07:10 AM
  #1  
Thread Starter
 
Join Date: Jan 2015
Posts: 270
Likes: 0
Liked 6 Times in 6 Posts
Default Rough idle when its cold?

Does anyone else have rough idle when it's cold? Say its 29 degrees out and you start the car and go for a drive rightaway and the engine will struggle a bit when you come to a stop. (Rpms will go down below 1000 and almost stall) but once the engine is warm and I've been driving a bit rpms will go down to 800-1000 at stops.

That is happening to me, I did clean the IACV but not take it fully apart to clean it I just took the unit off and sprayed some carb cleaning and used Q tips. What else could it be?
czirrfb3 is offline  
Old 02-09-2019, 11:32 AM
  #2  
 
HarryD's Avatar
 
Join Date: Oct 2008
Location: San Francisco
Posts: 1,060
Liked 32 Times in 32 Posts
Default

You have a tendency to ignore solid, meaningful advice on this forum...

If you just sprayed your IACV, that's not the 100% correct way of cleaning it, so you cannot rule out the IACV yet.

Follow the instructions to [carefully] take it apart -- pay attention to the Billman250 instructions and see the photos:
https://www.s2ki.com/forums/s2000-un.../#post23350475
HarryD is offline  
Old 02-09-2019, 11:33 PM
  #3  
Thread Starter
 
Join Date: Jan 2015
Posts: 270
Likes: 0
Liked 6 Times in 6 Posts
Default

I wish I had the special socket needed to fully assemble the IACV for a deep clean can I find one at a hardware store or would I need to order online?
czirrfb3 is offline  
Old 02-10-2019, 11:24 AM
  #5  
Thread Starter
 
Join Date: Jan 2015
Posts: 270
Likes: 0
Liked 6 Times in 6 Posts
Default

Originally Posted by windhund116 View Post
DeWalt Security bit set has the T20 bit.

https://www.amazon.com/DEWALT-DWAX20...curity+bit+set
I don't really wanna buy an entire set for one socket. Do they sell them individually?
czirrfb3 is offline  
Old 02-10-2019, 12:36 PM
  #6  
 
Slowcrash_101's Avatar
 
Join Date: Jul 2013
Posts: 3,660
Liked 66 Times in 65 Posts
Default

Probably not, you'll have to buy a set, but you can get them at any hardware store, or general auto parts store for ~$10, and then you'll have them. Old cars with worn O2 sensors benefit tremendously with a new one where idle smoothness is concerned. O2 sensors last ~100k miles.
Slowcrash_101 is offline  
Old 03-18-2019, 08:36 AM
  #8  
 
jackmugen02's Avatar
 
Join Date: Dec 2003
Posts: 926
Liked 30 Times in 29 Posts
Default

I have the same problem, but with opposite engine temperature conditions. I also notice trouble starting the car for the first time of the day during cold weather, sputters to life/requires throttle to be pressed and hold so the car doesn't die during start up. I've ordered this socket: TTXR20TPE https://store.snapon.com/TORX-Plus-1...r-P643639.aspx It's a 5 lobe TORX.

I will follow this video:
jackmugen02 is offline  
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
gbjhch9
S2000 Under The Hood
5
08-31-2014 10:23 AM
Moddiction
S2000 Talk
13
12-17-2007 05:06 PM
b00stn
S2000 Under The Hood
25
03-31-2006 03:48 PM
tonerockyhorror
S2000 Under The Hood
5
01-23-2006 11:15 AM
DrStuff
S2000 Talk
3
12-06-2002 07:03 AM


Quick Reply: Rough idle when its cold?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands