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-   Honda Civic / Del Sol (1992 - 2000) (https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/)
-   -   High idle when IACV plugged in (https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/high-idle-when-iacv-plugged-3025979/)

ek.troy 02-10-2012 06:38 AM
High idle when IACV plugged in
 
I am having a idle problem in my 97 civic with gsr swap. I'm sure its a problem with the iacv cause with it plugged in it idles at almost 2000 rpm. Then I cover the port on the tb and it idles perfect like normal then if i unplug it the idle goes down and jumps. So is this a bad iacv?

grumblemarc 02-10-2012 06:41 AM
Re: IACV Problem
 
Why don't you at least try cleaning it before contemplating the replacement.

Libertariat 02-10-2012 07:00 AM
Re: IACV Problem
 
Originally Posted by grumblemarc (Post 46836903)
Why don't you at least try cleaning it before you contemplating the replacement.
Yes, this is very common. Remove the IACV, take it apart and clean it.

ek.troy 02-10-2012 07:04 AM
Re: IACV Problem
 
Took it off and tried cleaning with carb clean with no change

axis11 02-10-2012 09:06 AM
Re: IACV Problem
 
Retrieve trouble codes if any.

ek.troy 02-10-2012 10:56 AM
Re: IACV Problem
 
No trouble codes at all

canadaek 02-10-2012 04:43 PM
Re: IACV Problem
 
if you cover the whole t/b does the car die ? check throttle cable adjustment ,idle air bleed screw, and throttle stop(do not adjust this) if there all ok replace iacv

Former User 02-10-2012 06:54 PM
Re: IACV Problem
 
Originally Posted by ek.troy (Post 46836889)
I am having a idle problem in my 97 civic with gsr swap. I'm sure its a problem with the iacv cause with it plugged in it idles at almost 2000 rpm. Then I cover the port on the tb and it idles perfect like normal then if i unplug it the idle goes down and jumps. So is this a bad iacv?
What CEL codes are thrown? Does the CEL work? This could be caused by a dirty IACV or also by a faulty ECT sensor or TPS.

ek.troy 02-12-2012 03:51 PM
Re: IACV Problem
 
Originally Posted by canadaek (Post 46840586)
if you cover the whole t/b does the car die ? check throttle cable adjustment ,idle air bleed screw, and throttle stop(do not adjust this) if there all ok replace iacv
Hand over throttle body and the car completely dies. Throttle cable, idle air bleed screw and throttle stop are all good. So I am leaning towards a bad IACV

Originally Posted by RonJ@HT (Post 46841176)
What CEL codes are thrown? Does the CEL work? This could be caused by a dirty IACV or also by a faulty ECT sensor or TPS.
No CEL what so ever and I said that I tried to clean it already. Replaced the ECT sensor with another one I had laying around and same result. Haven't repaced the TPS yet, but I do have another TPS.

ek.troy 02-12-2012 09:27 PM
Re: High idle when IACV plugged in
 
ttt

96dxcrapbox 02-12-2012 09:40 PM
Re: High idle when IACV plugged in
 
your iac is done go get a new one

MonkeyBoy668 02-13-2012 08:03 AM
Re: IACV Problem
 
Originally Posted by Libertariat (Post 46836981)
Remove the IACV, take it apart and clean it.
I've heard of people soaking their IACVs when they're too lazy to disassemble them, but depending on what you're soaking it in the IACV can get damaged.

ek.troy 02-13-2012 03:45 PM
Re: High idle when IACV plugged in
 
I am using B12 Chemtool Carb cleaner I will try taking it apart and trying again.


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