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idle issues 1998 H22A JDM swap into EG

 
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Old 05-28-2008, 08:17 PM
zyx zyx is offline
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idle issues 1998 H22A JDM swap into EG

hi there this is my setup

-1998 JDM H22A engine
-LSD tranny
-ACT light flywheel
-ACT clutch
-AEM cam gears
-AEM fuel rail with adj. fuel pressure regulator
-MSD ignition
-ZEX NOS dry kit 130 shot
-Full exhaust
-Tokico struts and springs (fully adjustable...height and stiffness)
-2001 GSR full brake upgrade w/ cross drilled rotors
-GSR interior
-JDM wing
-JDM midwing
-Custom stereo (2 Alpine Type E 12's with Alpine amps, Type S mids and tweets with JDM speaker mount in the rear)
-Kenwood DVD flip with navigation
-Momo spec 2 18 inch wheels with Yokohama tires
-Spider body kit
-ITR strut tower brace
-HID kit with one piece headlights
-Crystal tail lights
-Autometer C2 Guages (oil, boost, tachometer w/shift light, fuel, air/fuel, nos)



My idle keeps going up and down from 1000-1500
I cleaned out the IAC and checked for vacuum leaks but nothing..
checked also for bubbles in the coolant system

its hooked up to Apex AFC Neo which controls lots of stuff. I play around with that unit and I can make it sound a bit better, however the idle still goes up and down quicker if i tinker around with Apex AFC Neo. If I just put Apex AFC Neo back to default settings the idle will go up and down slower...

can a IAC go bad?

any suggestions?
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Old 05-28-2008, 11:34 PM
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I have the same issue except mine goes from 1000 to 2000 and i also have an AFC NEO i am also misfiring honda guys think it is either my EGR or i have a Vacuum leak
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Old 05-29-2008, 01:06 AM
zyx zyx is offline
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hmm well you can adjust your lo/hi points in the neo
however that just makes it go up and down quicker

its kind of annoying, i want to fix it
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Old 05-29-2008, 01:09 AM
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if your positive its not a vacuum leak or a bad IACV or FITV, or there's no air in your coolant, you might have a crack in one of the gaskets on the IM causing a leak, which would lead to the bouncing idle.
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But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
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Old 05-29-2008, 01:20 AM
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well thats the thing im not sure

can a IACV stop working? i took it apart and sprayed carb cleaner, and theres a spring in the IACV with something else... i dont know if its mechanical or not.

should I just go replace the IACV?
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Old 05-29-2008, 01:40 AM
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Quote:
Originally Posted by twokexlv6coupe View Post
if your positive its not a vacuum leak or a bad IACV or FITV, or there's no air in your coolant, you might have a crack in one of the gaskets on the IM causing a leak, which would lead to the bouncing idle.
haha yeah take it from me nick... but like nick said and as was my problem it could very well be an intake manifold gasket leak... i think i read somewhere that the resistance in the IACV is supposed to be somewhere between 8-12 ohms but dont quote me on it. listen to see if you hear any hissing noises from around the IM....to check if the gasket is leaking spray small amounts of carb cleaner in short burst where the manifold meets the head and if the idle changed then its the gasket. if you are 100% sure its the IACV i got an extra one laying around
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Old 05-29-2008, 02:17 AM
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Quote:
Originally Posted by 94ludeguy View Post
haha yeah take it from me nick... but like nick said and as was my problem it could very well be an intake manifold gasket leak... i think i read somewhere that the resistance in the IACV is supposed to be somewhere between 8-12 ohms but dont quote me on it. listen to see if you hear any hissing noises from around the IM....to check if the gasket is leaking spray small amounts of carb cleaner in short burst where the manifold meets the head and if the idle changed then its the gasket. if you are 100% sure its the IACV i got an extra one laying around
yeah ive sprayed carb cleaner everywhere to see if the idle goes up, nothing happened

im going to try and replace the IAC, i live in vancouver canada so you're a little far away to give me yours. thanks for all the help so far

i will try spraying it closer to the gasket however, since I just sprayed all the vacuum lines
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Old 05-29-2008, 07:21 PM
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Where is the FITV located at?
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Old 05-29-2008, 07:24 PM
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Old 05-29-2008, 08:13 PM
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FITV is on the bottom of the throttle body, with 2 coolant lines running to it.
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2000 Acura TL; DD
2005 Stage2.5+ Subaru WRB STi : RzKar!
Ivey Tuned - Advan - Cobb - Rallispec - CP - Perrin - ACT - KillerB - Carillo - TurboXS - Defi - Innovate - Walbro - DeatschWerks - Feal - H&R - Alpine - Infiniti - Curt

2001 Kawasaki STX1100 D.I. - Sold!
2007 Sea-Doo RXT 215; ET 127 +3 S/C impeller, DIY 3" intake, DIY resonator delete/free flow exhaust, DIY oil catch can, Rule 500gph bilge pump


Quote:
Originally Posted by Brash View Post
But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
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Old 05-29-2008, 08:34 PM
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Can i use carb cleaner to clean that to?
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Old 05-29-2008, 08:41 PM
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http://preludezone.com/showpost.php?...6&postcount=15

i did that to my IACV/FITV its the same thing isn't ?

still nothing

I was thinking to change it out, do they stop working?

I might just get a new IACV and EGR, what do you guys suggest?
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Old 05-29-2008, 08:47 PM
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Quote:
Originally Posted by zyx View Post
i did that to my IACV/FITV its the same thing isn't ?

No, they're not the same. Download the service manual located in the FAQ's, and it'll describe what each part does.

Take off the FITV, take off the top cover, and screw the wax plunger back in all the way. Thats a very common cause to surging idles.
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2000 Acura TL; DD
2005 Stage2.5+ Subaru WRB STi : RzKar!
Ivey Tuned - Advan - Cobb - Rallispec - CP - Perrin - ACT - KillerB - Carillo - TurboXS - Defi - Innovate - Walbro - DeatschWerks - Feal - H&R - Alpine - Infiniti - Curt

2001 Kawasaki STX1100 D.I. - Sold!
2007 Sea-Doo RXT 215; ET 127 +3 S/C impeller, DIY 3" intake, DIY resonator delete/free flow exhaust, DIY oil catch can, Rule 500gph bilge pump


Quote:
Originally Posted by Brash View Post
But you need that scoop on the hood. Is it true that they're big enough to fit your lunch box and all your camera gear in it?
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Old 05-29-2008, 08:54 PM
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Quote:
Originally Posted by twokexlv6coupe View Post
No, they're not the same. Download the service manual located in the FAQ's, and it'll describe what each part does.

Take off the FITV, take off the top cover, and screw the wax plunger back in all the way. Thats a very common cause to surging idles.
thanks so much

ill do that right now
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Old 05-29-2008, 08:56 PM
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Yes, Twokexlv6coupe, our resident Italian drunk is right about the FITV...be careful when removing the cover, there is a spring that shoots out...

...when does the bouncy idle begin? after the car is warmed up or right away after you turn on the car?


...sick swap though, h22 into an EG Civic. You gotta show us some more pics of this beast after you've fixed your bouncy idle.
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Old 05-29-2008, 09:05 PM
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Quote:
Originally Posted by Prelude13 View Post
Yes, Twokexlv6coupe, our resident Italian drunk is right about the FITV...be careful when removing the cover, there is a spring that shoots out...

...when does the bouncy idle begin? after the car is warmed up or right away after you turn on the car?


...sick swap though, h22 into an EG Civic. You gotta show us some more pics of this beast after you've fixed your bouncy idle.

the bouncy idle is happening 24/7
doesn't matter if its cold or warm

im trying to find the FAQ now, thanks for the compliment ill for sure post some pictures
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Old 05-29-2008, 09:35 PM
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have you messed with the idle screw at all? How is driving the car? does it want to stall out on you when driving?




the service manual is located in my sig - either 4th gen or 5th gen
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Old 05-29-2008, 11:47 PM
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well looks like it was the FITV

took it apart using these instructions
http://92lude.com/idle_air_control_bypass_mod.htm

worked like a charm, idling perfect now.

Might play around with Apex AFC Neo to tune it a bit better...

thanks for all the help!
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