DIY: IAC Cleaning

knucks3man · 06-16-06, 02:50 PM

First of all, this was due to the help of Mikey851.

Ok, now to the DIY:

Time: 20-40mins

Tools:
10mm socket
12mm socket (3/8 drive)
12mm open end

Throttle Body Cleaner (NOT Carb Cleaner)

Procedure:

1. Remove Air Intake
2. Remove Driver Side Valve Cover (2 10mm nuts)
3. Remove Clip from IAC, there is also another Clip shown that needs to be removed. Completely set these aside out of the way. *PicsBelow*
4. Locate the 2 Bolts holding the IAC in place.

5. Remove Bolts. For the Lower Bolt use a 12mm Open End. For Upper Bolt, use 3/8 drive 12mm Socket.

6. Pull IAC away from throttle body to expose the passages. *keep in mind the 2 coolant hoses attached, to not break or puncture them.*
7. Spray Cleaner and let sit for 4-8 hours. Clean out, and do reverse for install.

Hope this helps anyone needed to do this.

XclusivLegend · 06-16-06, 02:52 PM

sorry... i'm a noob... why is this good?

knucks3man · 06-16-06, 02:55 PM

If your car has trouble idling, stalling on hot starts, this could be your problem.

The passage gets clogged with carbon over time, and thus does not allow air to flow while idling, creating the stalling. Cleaning will solve the problem, in most cases.

S4gunn · 06-16-06, 07:16 PM

After spraying, I used lots of Q-tips dipped in TB cleaner to clean both the IAC as well as the holes in the intake manifold. While I'm not sure how effective the q-tips were but it was kind of theraputic

-g

Alperovich · 10-03-06, 01:03 PM

can we move this to the DIY section

**Mike Diaz** · 10-03-06, 02:23 PM

Sure I can

Alperovich · 10-03-06, 03:27 PM

Thanx Mike! Glad to have ya back here with us

noudles · 10-03-06, 10:20 PM

great DIY

definitely doin this.. i need it

guyad · 10-04-06, 12:21 AM

So chances are if the RPMs on my car sometimes bounce up and down and drop randomly and sometimes stalls then most likely a Throttle body cleaning is all i need?

Kenso · 10-04-06, 12:29 AM

Quote:

Originally Posted by guyad

So chances are if the RPMs on my car sometimes bounce up and down and drop randomly and sometimes stalls then most likely a Throttle body cleaning is all i need?

Your white coupe still has a Type 1 ecu, that may be affecting things as well. My idle was a little funny with my AC on occasionally, when I finally got a Type 2 ecu I had no more problems.

guyad · 10-04-06, 12:38 AM

So how expensive is it to get a type II ECU and have it put in?

AckRite · 10-04-06, 05:13 PM

Yo Henry (Dinero19) this one is for you! Nice write up too!

Alperovich · 10-04-06, 09:16 PM

Quote:

Originally Posted by guyad

So how expensive is it to get a type II ECU and have it put in?

you should talk with telion he should be able to help you out.

bl420 · 10-08-06, 05:08 PM

man these bolts are a pain in the ass... especially not removing the MLS bar

hotlavaflow · 10-08-06, 07:50 PM

I'm gonna try this tomorrow morning, my idle is too high right now. I'm afraid to say.... it's 1700rpm. I have to check the vacuum system too.

06-16-06, 02:50 PM	#1 (permalink)
knucks3man Registered User Join Date: Jun 2004 Location: NJ Posts: 478 Car 1: 92' White Sedan iTrader: (0)	DIY: IAC Cleaning First of all, this was due to the help of Mikey851. Ok, now to the DIY: Time: 20-40mins Tools: 10mm socket 12mm socket (3/8 drive) 12mm open end Throttle Body Cleaner (NOT Carb Cleaner) Procedure: 1. Remove Air Intake 2. Remove Driver Side Valve Cover (2 10mm nuts) 3. Remove Clip from IAC, there is also another Clip shown that needs to be removed. Completely set these aside out of the way. PicsBelow 4. Locate the 2 Bolts holding the IAC in place. 5. Remove Bolts. For the Lower Bolt use a 12mm Open End. For Upper Bolt, use 3/8 drive 12mm Socket. 6. Pull IAC away from throttle body to expose the passages. keep in mind the 2 coolant hoses attached, to not break or puncture them. 7. Spray Cleaner and let sit for 4-8 hours. Clean out, and do reverse for install. Hope this helps anyone needed to do this.

06-16-06, 02:52 PM	#2 (permalink)
XclusivLegend Registered User Join Date: Jan 2006 Location: Queens, NY Posts: 383 Car 1: 92 Legend (Phantom Grey Pearl) Sedan iTrader: (0)	sorry... i'm a noob... why is this good? __________________ http://i49.photobucket.com/albums/f2...endAvatar3.gif http://i49.photobucket.com/albums/f2...rus_1/sig2.jpg http://i49.photobucket.com/albums/f2...gendAvatar.jpg92 Phantom Grey Pearl Sedan /Black Leather You Wanted "ALL RED TAILLIGHTS" So Here they are, Go Get Them!!! http://www.acura-legend.com/vbulleti...ad.php?t=78139

06-16-06, 07:16 PM	#4 (permalink)
S4gunn Registered User Join Date: Nov 2005 Location: SF, CA Posts: 430 Car 1: 02 Audi S4 Car 2: 94 Acura Legend L iTrader: (1)	After spraying, I used lots of Q-tips dipped in TB cleaner to clean both the IAC as well as the holes in the intake manifold. While I'm not sure how effective the q-tips were but it was kind of theraputic -g __________________ 2002 Audi S4 1994 Acura Legend L (commuter)

10-03-06, 02:23 PM	#6 (permalink)
Mike Diaz WHAAAAAH! Join Date: Jan 2002 Location: N Canton, Ohio Posts: 10,983 Car 1: 3.5L 1991 LS Coupe 5 Spd Blk/Blk Car 2: 1994 Civic EG Hatch Car 3: 03 Honda TRX400EX iTrader: (2)	Sure I can __________________ 2nd Gen FAQ \| Newbie FAQ \| Bleeding Coolant DIY \| Manual Trans Flush DIY 3.5L DIY \| Crank-No Start Diagnosis \| How I built My Legend

10-03-06, 10:20 PM	#8 (permalink)
noudles .The.Laos.Guy. Join Date: Feb 2005 Location: NC Posts: 3,336 Car 1: 1993 Acura Legend iTrader: (5)	great DIY definitely doin this.. i need it __________________ Legends of North Carolina 1993 Acura Legend L [SOLD] 2002 Lexus IS 300 [current driver]

Remove Advertisements Sponsored Links
The Acura Legend & Acura RL Forum Advertisement

06-16-06, 02:55 PM	#3 (permalink)
knucks3man Registered User Join Date: Jun 2004 Location: NJ Posts: 478 Car 1: 92' White Sedan iTrader: (0)	If your car has trouble idling, stalling on hot starts, this could be your problem. The passage gets clogged with carbon over time, and thus does not allow air to flow while idling, creating the stalling. Cleaning will solve the problem, in most cases.

10-04-06, 12:21 AM	#9 (permalink)
guyad Aguy Join Date: Jun 2005 Location: Ocala, Florida (marion oaks) Posts: 1,223 Car 1: 92 LS coupe 5spd Car 2: 04 Silverado Z71 iTrader: (3)	So chances are if the RPMs on my car sometimes bounce up and down and drop randomly and sometimes stalls then most likely a Throttle body cleaning is all i need? __________________ http://i112.photobucket.com/albums/n...92/truck-1.jpg

10-04-06, 12:38 AM	#11 (permalink)
guyad Aguy Join Date: Jun 2005 Location: Ocala, Florida (marion oaks) Posts: 1,223 Car 1: 92 LS coupe 5spd Car 2: 04 Silverado Z71 iTrader: (3)	So how expensive is it to get a type II ECU and have it put in? __________________ http://i112.photobucket.com/albums/n...92/truck-1.jpg

10-04-06, 05:13 PM	#12 (permalink)
AckRite Huh, chicken? GET HIM!!! Join Date: Oct 2005 Location: Savannah, Ga Posts: 1,006 Car 1: 1991 3.5 Ack Legend Ls Coupe 5spd Car 2: 1997 Sunfire iTrader: (4)	Yo Henry (Dinero19) this one is for you! Nice write up too! __________________

10-08-06, 05:08 PM	#14 (permalink)
bl420 Dont Catch Join Date: Sep 2004 Location: Bogata, Lima Posts: 4,810 Car 1: 1991 Sedan iTrader: (16)	man these bolts are a pain in the ass... especially not removing the MLS bar __________________ Anti Alpine Type-R Thread

10-08-06, 07:50 PM	#15 (permalink)
hotlavaflow 'hood Garage Join Date: Sep 2002 Location: cough up a lung, where I'm from, Bklyn son Posts: 3,256 Car 1: '91 Twin Turbo 5/6 spd Panda/Type C Car 2: KA24DE-T S13 iTrader: (3)	I'm gonna try this tomorrow morning, my idle is too high right now. I'm afraid to say.... it's 1700rpm. I have to check the vacuum system too. __________________ DO NOT FEED THE ANIMALS AEM powered Twin Turbo KA7 since Feb'07

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
DIY: Intake Manifold Removal and EGR Cleaning	petthepeep	First Generation RL (1996-2004)	15	04-16-08 11:29 PM
Acura-Legend.com/Acura-RL.com needs your help with making an official archive	Mike Diaz	Second Generation Legend (1991-1995)	23	01-11-08 01:58 AM
cleaning the iac	JASON B	Second Generation Legend (1991-1995)	35	04-11-06 11:14 PM
EGR valve cleaning DIY?	Coderb64	Second Generation Legend (1991-1995)	3	06-12-05 04:38 AM
G1 cleaning front drainholes DIY	Ken	First Generation Legend (1986-1990)	3	01-12-04 07:45 AM