# s13 sr20det idle control valve

**URL:** <https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672>\
**Category:** SON240sx Automotive\
**Created:** [September 12, 2005, 7:43am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672 "2005-09-12T07:43:35Z")\
**Posts on this page:** 14\
**Page:** 1

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**Author:** ![Jacky\_Ngai](https://avatars.discourse-cdn.com/v4/letter/j/3d9bf3/32.png) [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)\
**Post date:** [September 12, 2005, 7:43am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/1 "2005-09-12T07:43:35Z")

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Anyone knows

Where is the idle control valve for the S13 sr engine? (pic will help)

How can i clean it?

Thanks for the help.

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**Author:** ![Happy240sx](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/happy240sx/32/5515_2.png) [@Happy240sx](https://forums.speedlife.net/u/Happy240sx)\
**Post date:** [September 12, 2005, 7:58am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/2 "2005-09-12T07:58:39Z")

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Not sure specifically…but on myost cars they are bolted to the Intake manifld.

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**Author:** ![Jedi\_Car\_Fan](https://avatars.discourse-cdn.com/v4/letter/j/b9e5f3/32.png) [@Jedi\_Car\_Fan](https://forums.speedlife.net/u/Jedi_Car_Fan)\
**Post date:** [September 12, 2005, 8:29am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/3 "2005-09-12T08:29:30Z")

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same location as the KA pretty much

on the inner side of the intake manifold towards the rear of the fire wall somewhat…

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**Author:** ![Jacky\_Ngai](https://avatars.discourse-cdn.com/v4/letter/j/3d9bf3/32.png) [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)\
**Post date:** [September 12, 2005, 10:56am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/4 "2005-09-12T10:56:04Z")

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Is it this one?

![http://i3.photobucket.com/albums/y65/jackyngai/d0bb0995.jpg](http://i3.photobucket.com/albums/y65/jackyngai/d0bb0995.jpg)  
 ![http://i3.photobucket.com/albums/y65/jackyngai/2cdd6f92.jpg](http://i3.photobucket.com/albums/y65/jackyngai/2cdd6f92.jpg)  
 ![http://i3.photobucket.com/albums/y65/jackyngai/f5b49a4b.jpg](http://i3.photobucket.com/albums/y65/jackyngai/f5b49a4b.jpg)

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**Author:** ![Cal](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/cal/32/5505_2.png) [@Cal](https://forums.speedlife.net/u/Cal)\
**Post date:** [September 12, 2005, 11:24am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/5 "2005-09-12T11:24:21Z")

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yes.

Unscrew to increase idle speed, screw down to lower.

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**Author:** ![Jacky\_Ngai](https://avatars.discourse-cdn.com/v4/letter/j/3d9bf3/32.png) [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)\
**Post date:** [September 12, 2005, 11:34am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/6 "2005-09-12T11:34:30Z")

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> [@got\_boost\_S13](#):
>
> yes.
> 
> Unscrew to increase idle speed, screw down to lower.

Sorry. I mean is it a Idle Control Valve??

I don’t want to adjust my rpm. It was fine when the car is complete stop. The rpm drop to 500rmp when i brake in neutral.

Thanks.

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**Author:** ![Gonad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gonad/32/5481_2.png) [@Gonad](https://forums.speedlife.net/u/Gonad)\
**Post date:** [September 12, 2005, 12:09pm UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/7 "2005-09-12T12:09:09Z")

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It’s the screw directly below (looking down from top) the 2nd and 3rd  
runners on the intake manifold.

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**Author:** ![Doba](https://avatars.discourse-cdn.com/v4/letter/d/a8b319/32.png) [@Doba](https://forums.speedlife.net/u/Doba)\
**Post date:** [September 13, 2005, 8:19am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/8 "2005-09-13T08:19:16Z")

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That is the AAC Valve, but ive heard other people calling it the Idle control valve yes, from what i remember reading in the past, is if you clean it, your problem will go away.  
but dont quote me on that, unless someone backs me up.

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**Author:** ![Hurricane](https://avatars.discourse-cdn.com/v4/letter/h/e9bcb4/32.png) [@Hurricane](https://forums.speedlife.net/u/Hurricane)\
**Post date:** [September 13, 2005, 9:24am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/9 "2005-09-13T09:24:19Z")

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Yea a dirty IACV will cause the car to have trouble at idle… cleaning it is always a good idea anyways. I know mine is coming out this winter for a good flush.

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**Author:** ![DarkForceJackal](https://avatars.discourse-cdn.com/v4/letter/d/b38774/32.png) [@DarkForceJackal](https://forums.speedlife.net/u/DarkForceJackal)\
**Post date:** [September 13, 2005, 9:45am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/10 "2005-09-13T09:45:46Z")

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> [@Hurricane](#):
>
> Yea a dirty IACV will cause the car to have trouble at idle… cleaning it is always a good idea anyways. I know mine is coming out this winter for a good flush.

Do you know if it needs to come out to be cleaned? Or can you try spraying TB cleaner into it first or something?

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**Author:** ![Hurricane](https://avatars.discourse-cdn.com/v4/letter/h/e9bcb4/32.png) [@Hurricane](https://forums.speedlife.net/u/Hurricane)\
**Post date:** [September 13, 2005, 11:40am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/11 "2005-09-13T11:40:03Z")

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You can do it with TB cleaner… but it doesn’t work as well as removing it. I used TB cleaning on mine when I first got the SR and it definatly helped… but I am sure it could still use a REAL good cleaning.

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**Author:** ![Jacky\_Ngai](https://avatars.discourse-cdn.com/v4/letter/j/3d9bf3/32.png) [@Jacky\_Ngai](https://forums.speedlife.net/u/Jacky_Ngai)\
**Post date:** [September 13, 2005, 11:41am UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/12 "2005-09-13T11:41:41Z")

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> [@Doba](#):
>
> That is the AAC Valve, but ive heard other people calling it the Idle control valve yes, from what i remember reading in the past, is if you clean it, your problem will go away.  
> but dont quote me on that, unless someone backs me up.

I took the screw out to clean it. But nothing change. The car still drop rpm when i brake in neutral.

Will oil pressure make difference? My oil pressure is only 1.6 for now. It was 2.0 after i changed the oil last time.

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<div class="post-metadata">

**Author:** ![Hurricane](https://avatars.discourse-cdn.com/v4/letter/h/e9bcb4/32.png) [@Hurricane](https://forums.speedlife.net/u/Hurricane)\
**Post date:** [September 14, 2005, 2:33pm UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/13 "2005-09-14T14:33:28Z")

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no no no… take the IACV line off your intake (3/4" rubber hose that connects to the IC piping right in front of the TB) while the car is running spray some TB cleaner in there… you might need to keep it running by bliping the throttle at the butterfly. Don’t rev it just keep it running. Then let it idle for a min and go for a boot.

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<div class="post-metadata">

**Author:** ![pearlS13](https://avatars.discourse-cdn.com/v4/letter/p/e68b1a/32.png) [@pearlS13](https://forums.speedlife.net/u/pearlS13)\
**Post date:** [September 19, 2005, 7:13pm UTC](https://forums.speedlife.net/t/s13-sr20det-idle-control-valve/88672/14 "2005-09-19T19:13:55Z")

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i just did this to my sr, first time ever doing it and wow what a difference it made! I think it actually solved my problem with my revs dropping low when pressing the clutch in.
