Where is the idle adjustment screw?

Thread Tools
 
Search this Thread
 
Old Jul 19, 2003 | 09:58 AM
  #1  
B2FiNiTY's Avatar
Thread Starter
Honda-Tech Member
iTrader: (2)
 
Joined: Mar 2001
Posts: 38,367
Likes: 1
Default Where is the idle adjustment screw?

Anyone have a pic of it on a 88 crx si? I can't seem to find one. I know it is on the tb but where?
Reply
Old Jul 19, 2003 | 10:06 AM
  #2  
Malgerus's Avatar
Honda-Tech Member
20 Year Member
 
Joined: Feb 2002
Posts: 5,723
Likes: 1
From: BC
Default Re: Where is the idle adjustment screw? (B2FiNiTY)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B2FiNiTY &raquo;</TD></TR><TR><TD CLASS="quote">Anyone have a pic of it on a 88 crx si? I can't seem to find one. I know it is on the tb but where?</TD></TR></TABLE>

Right on the top of the throttle body. Might have a little green cap on it.
Reply
Old Jul 19, 2003 | 11:20 AM
  #3  
B2FiNiTY's Avatar
Thread Starter
Honda-Tech Member
iTrader: (2)
 
Joined: Mar 2001
Posts: 38,367
Likes: 1
Default Re: Where is the idle adjustment screw? (Mr. S)

What kind of screw is it? Philip's head? There is something that resembles it but it just looks flat with no place for a screw driver.
Reply
Old Jul 19, 2003 | 11:27 AM
  #4  
MrTodd's Avatar
Member
 
Joined: May 2002
Posts: 1,861
Likes: 1
From: Hell, frozen over. USA
Default Re: Where is the idle adjustment screw? (B2FiNiTY)

It's a flat screw driver type, not philips. The screw is most likely covered with hondabond or something similar, so it can be hard to see sometimes.

Check out this pic...


This picture is off a '92 Civic EX, but the location is the same. #1 on the diagram is the TB idle adjustment screw.
Reply
Old Jul 19, 2003 | 11:35 AM
  #5  
B2FiNiTY's Avatar
Thread Starter
Honda-Tech Member
iTrader: (2)
 
Joined: Mar 2001
Posts: 38,367
Likes: 1
Default Re: Where is the idle adjustment screw? (MrTodd)

Why does hondabond need to be there? Will it leak something?
Reply
Old Jul 19, 2003 | 11:44 AM
  #6  
etp72's Avatar
Junior Member
 
Joined: May 2003
Posts: 110
Likes: 0
From: MA
Default

what is the idle speed supposed to be on the 88 CRX Si?


Modified by etp72 at 6:10 AM 7/20/2003
Reply
Old Jul 19, 2003 | 11:55 AM
  #7  
B2FiNiTY's Avatar
Thread Starter
Honda-Tech Member
iTrader: (2)
 
Joined: Mar 2001
Posts: 38,367
Likes: 1
Default Re: (etp72)

At least 800 when warm.

Mine is too low and the whole car shakes. At least it doesn't stall though.
Reply
Old Jul 19, 2003 | 12:04 PM
  #8  
crashtest Sonny's Avatar
Honda-Tech Member
20 Year Member
iTrader: (1)
 
Joined: May 2002
Posts: 3,169
Likes: 0
From: Monterey Park/Huntington Beach, CA, USA
Default Re: Where is the idle adjustment screw? (MrTodd)

sorry to jack your post..where is the IAT sensor on that picture?
Reply
Old Jul 19, 2003 | 12:20 PM
  #9  
MrTodd's Avatar
Member
 
Joined: May 2002
Posts: 1,861
Likes: 1
From: Hell, frozen over. USA
Default Re: Where is the idle adjustment screw? (B2FiNiTY)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B2FiNiTY &raquo;</TD></TR><TR><TD CLASS="quote">Why does hondabond need to be there? Will it leak something? </TD></TR></TABLE>

Mechanics are supposed to put hondabond, or silicone gasket maker coated on top of the screw, just so it doesn't loosen while the car is running. It's not a big deal at all, I don't have any gunk on my idle screw.

As for the IAT sensor placement, the picture doesn't show the actual sensor, but you can see where it plugs into the I/M. Look at hose #24, where it plugs into the manifold, the IAT sensor is located just to the right of the hose. You can see where it plugs in on the picture....
Reply
Old Jul 19, 2003 | 01:20 PM
  #10  
Malgerus's Avatar
Honda-Tech Member
20 Year Member
 
Joined: Feb 2002
Posts: 5,723
Likes: 1
From: BC
Default Re: Where is the idle adjustment screw? (MrTodd)

Idle should be 750+-50 rpm, not 800. That's too high.
Reply
Old Jul 19, 2003 | 02:54 PM
  #11  
blah13's Avatar
Honda-Tech Member
 
Joined: Mar 2003
Posts: 1,620
Likes: 0
From: Jacksonville, FL, USA
Default Re: Where is the idle adjustment screw? (Mr. S)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr. S &raquo;</TD></TR><TR><TD CLASS="quote">Idle should be 750+-50 rpm, not 800. That's too high.</TD></TR></TABLE>

Uh 750 + or - 50 is 700-800, so 800 is fine. It just should be in that range.
Reply
Old Jul 19, 2003 | 03:20 PM
  #12  
Malgerus's Avatar
Honda-Tech Member
20 Year Member
 
Joined: Feb 2002
Posts: 5,723
Likes: 1
From: BC
Default Re: Where is the idle adjustment screw? (blah13)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blah13 &raquo;</TD></TR><TR><TD CLASS="quote">

Uh 750 + or - 50 is 700-800, so 800 is fine. It just should be in that range.</TD></TR></TABLE>

Ok, I'm officially an idiot
Reply
Old Jul 20, 2003 | 12:12 AM
  #13  
DB2-R81's Avatar
Honda-Tech Member
25 Year Member
 
Joined: Jan 2000
Posts: 1,512
Likes: 2
From: Vancouver, BC, Canada
Default Re: Where is the idle adjustment screw? (Mr. S)

#1 is the idle air mixture adjustment screw; the idle speed adjustment screw is near the cable linkage pulley and is not shown in that diagram. Mess with #1 and you are changing the air, fuel ratio at idle. Yes, it will change your idle speed but only by allowing more or less air to bypass the throttle plate in the TB at idle.

When the #1 screw is turned inwards the engine will be running richer at idle. If you have environmental testing in your location at idle, your hydrocarbon reading may be above a passing level. The idle speed adjustment screw can be found above the red arrows in this picture, change its setting and you will only change the idle speed not the air fuel ratio.






Modified by DB1-R81 at 1:44 AM 7/20/2003
Reply
Old Jul 20, 2003 | 04:11 PM
  #14  
B2FiNiTY's Avatar
Thread Starter
Honda-Tech Member
iTrader: (2)
 
Joined: Mar 2001
Posts: 38,367
Likes: 1
Default Re: Where is the idle adjustment screw? (DB1-R81)

I poked around and couldn't find it. I will take some pics and maybe someone can point it out for me. Thanks.
Reply
Old Jul 21, 2003 | 11:48 PM
  #15  
B2FiNiTY's Avatar
Thread Starter
Honda-Tech Member
iTrader: (2)
 
Joined: Mar 2001
Posts: 38,367
Likes: 1
Default Re: Where is the idle adjustment screw? (B2FiNiTY)



Here's a pic from up top.
Reply
Old Jul 22, 2003 | 03:11 PM
  #16  
matt j's Avatar
Honda-Tech Member
 
Joined: Apr 2002
Posts: 2,964
Likes: 0
From: sioux falls, sd
Default

that isnt where its at look farther back ON the throttle body itself
Reply
Old Jul 22, 2003 | 03:18 PM
  #17  
halfpint's Avatar
Honda-Tech Member
 
Joined: Jul 2003
Posts: 33
Likes: 0
From: Rodeo, CA, USA
Default Re: Where is the idle adjustment screw? (DB1-R81)

DB1-R81, the idle speed screw your referring to, isn't that the throttle stop screw which the factory manual says should not be changed?
Reply
Old Jul 22, 2003 | 03:28 PM
  #18  
Spaceballsthelunchbox's Avatar
No Big Whoop
 
Joined: Jul 2001
Posts: 2,120
Likes: 4
From: A little closer to the Ecuator
Default Re: Where is the idle adjustment screw? (halfpint)

Dude, it's this one.
The one inside the red parenthesis.
BTW, if you like your T/B to look like that AND be 4 mm bigger in bore, email or PM me.
Reply
Old Jul 22, 2003 | 06:41 PM
  #19  
B2FiNiTY's Avatar
Thread Starter
Honda-Tech Member
iTrader: (2)
 
Joined: Mar 2001
Posts: 38,367
Likes: 1
Default Re: Where is the idle adjustment screw? (Spaceballs the lunch box)

AhH! I will go check right now. Thanks.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
2002civicrider
Honda Civic (2001 - 2005)
17
Jun 25, 2018 06:38 PM
RDAYA0
Honda Civic / Del Sol (1992 - 2000)
16
May 1, 2008 10:25 PM
Steezn4NOReason
Acura Integra
4
Dec 4, 2004 09:02 PM
Myh4tch
Honda Prelude
8
Jul 28, 2004 04:06 PM
Glocked1
Honda CRX / EF Civic (1988 - 1991)
1
Oct 3, 2003 05:13 AM




All times are GMT -8. The time now is 01:24 AM.