Where The Hell Is My Maf And Iacv???

ZOMBIEWAGON02 · 04-09-2009, 07:25 PM

I cant find them I dont know if Im looking in the right place or what but I dont know where these are and in a previous thread about my rough Idle i was told to clean these both and reset the ecu I fixed the air box problem( wasnt snapped in all the way) but the idle didnt change at all.. I want to clean these things and see if it helps AT ALL>>> PLEASE HELP ME OUT!!! CIRCLE IT IF YOU HAVE TO.. i have more pics of the area i thought they were in too so please let me know... I am a sooper sub newb, so be patient

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renyo · 04-09-2009, 07:43 PM

Well, from what I've seen, MAFs are usually next to the air/filter box on the passenger side of the car next to the fender. I don't know about IAC valves, but some models have them integrated into the throttle body..

turboL · 04-09-2009, 07:48 PM

you dont have a MAF, you have a MAP. And your IACV is on the right side of the throttle body in that pic

fastenova · 04-09-2009, 07:55 PM

In your picture, the IACV is thing on the right with the blue sticker that reads "A33-4", "UNIS" (ea)

ZOMBIEWAGON02 · 04-09-2009, 07:55 PM

with the blue tag on it?? Well where is the MAP??

ZOMBIEWAGON02 · 04-09-2009, 07:59 PM

How do I go about cleaning the IACV it doesnt look like the ones in the threads ive seen on here... I got the gasket for it but it doesnt really look like a place for it.

Back Road Runner · 04-09-2009, 07:59 PM

MAP's center on the intake manifold, i.e. bottom center of pic.

So ah...whacha doin'?

ZOMBIEWAGON02 · 04-09-2009, 08:03 PM

i was told to clean the MAF and Iacv to try to make the rough Idle go away...

Back Road Runner · 04-09-2009, 08:09 PM

Yeah, there won't be anything to do for the MAP, but feel free to look at the idle control. I've never touched one, so I can't really tell you anything about it and what you should or shouldn't do.

Reinonu · 04-09-2009, 10:27 PM

Quote:

Originally Posted by ZOMBIEWAGON02

i was told to clean the MAF and Iacv to try to make the rough Idle go away...

So let's discuss this a bit more before you go taking apart stuff that might not be a good idea.
First of all, you don't have a WRX, so don't assume their threads about rough idle translate directly to your car.
Second, how's your fuel efficiency? Did it drop at the same time as the rough idle?
Have you done any of the standard tune-up stuff? plugs, wires, fuel filter, pcv etc.?
Do you know any good mechanics?

ZOMBIEWAGON02 · 04-11-2009, 01:56 AM

I changed the plugs, fuel filter, changed oil and filter, air filter, and it was idling bad before that. I do know a mechanic, i am thinking about getting a live data going on it to see whats going on but i dont know all intailed in it...

Kevin Thomas · 04-11-2009, 09:43 AM

What exactly do you mean by 'rough idle'? I mean in detail, what is the car doing and at what rpm? Is it while driving and the car is stopped and idle or just when the car is sitting parked? Is it consistent or does it be rough off and on?

Trying to decipher it it could be hose related, IAC, MAP, something else electrical, mechanical...bad gas.

04-09-2009, 07:25 PM	#1
ZOMBIEWAGON02 Scooby Newbie Member#: 206319 Join Date: Mar 2009 Chapter/Region: NWIC Location: 541 Vehicle: 2002 Outback Sport Green...mostly	Where The Hell Is My Maf And Iacv??? I cant find them I dont know if Im looking in the right place or what but I dont know where these are and in a previous thread about my rough Idle i was told to clean these both and reset the ecu I fixed the air box problem( wasnt snapped in all the way) but the idle didnt change at all.. I want to clean these things and see if it helps AT ALL>>> PLEASE HELP ME OUT!!! CIRCLE IT IF YOU HAVE TO.. i have more pics of the area i thought they were in too so please let me know... I am a sooper sub newb, so be patient * Registered users of the site do not see these ads.

04-09-2009, 07:55 PM	#4
fastenova Scooby Specialist Member#: 38829 Join Date: Jun 2003 Chapter/Region: NWIC Location: Tigard, OR Vehicle: Not your usual 1997 Legacy GT	In your picture, the IACV is thing on the right with the blue sticker that reads "A33-4", "UNIS" (ea) Last edited by fastenova; 04-09-2009 at 07:55 PM. Reason: ninja

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04-09-2009, 07:43 PM	#2
renyo Scooby Newbie Member#: 93577 Join Date: Aug 2005 Chapter/Region: MAIC Location: Chicagoland Vehicle: 98 Impreza	Well, from what I've seen, MAFs are usually next to the air/filter box on the passenger side of the car next to the fender. I don't know about IAC valves, but some models have them integrated into the throttle body..

04-09-2009, 07:48 PM	#3
turboL Scooby Specialist Member#: 111735 Join Date: Apr 2006 Chapter/Region: MWSOC Location: Chicago Vehicle: 97 Impreza L Rust and White	you dont have a MAF, you have a MAP. And your IACV is on the right side of the throttle body in that pic

04-09-2009, 07:59 PM	#6
ZOMBIEWAGON02 Scooby Newbie Member#: 206319 Join Date: Mar 2009 Chapter/Region: NWIC Location: 541 Vehicle: 2002 Outback Sport Green...mostly	How do I go about cleaning the IACV it doesnt look like the ones in the threads ive seen on here... I got the gasket for it but it doesnt really look like a place for it.

04-09-2009, 07:59 PM	#7
Back Road Runner Scooby Guru Member#: 60082 Join Date: Apr 2004 Chapter/Region: MWSOC Location: Minnesota Vehicle: 2004 Forester STI Silver	MAP's center on the intake manifold, i.e. bottom center of pic. So ah...whacha doin'?

04-09-2009, 08:03 PM	#8
ZOMBIEWAGON02 Scooby Newbie Member#: 206319 Join Date: Mar 2009 Chapter/Region: NWIC Location: 541 Vehicle: 2002 Outback Sport Green...mostly	i was told to clean the MAF and Iacv to try to make the rough Idle go away...

04-09-2009, 08:09 PM	#9
Back Road Runner Scooby Guru Member#: 60082 Join Date: Apr 2004 Chapter/Region: MWSOC Location: Minnesota Vehicle: 2004 Forester STI Silver	Yeah, there won't be anything to do for the MAP, but feel free to look at the idle control. I've never touched one, so I can't really tell you anything about it and what you should or shouldn't do.

04-11-2009, 01:56 AM	#11
ZOMBIEWAGON02 Scooby Newbie Member#: 206319 Join Date: Mar 2009 Chapter/Region: NWIC Location: 541 Vehicle: 2002 Outback Sport Green...mostly	I changed the plugs, fuel filter, changed oil and filter, air filter, and it was idling bad before that. I do know a mechanic, i am thinking about getting a live data going on it to see whats going on but i dont know all intailed in it...

04-11-2009, 09:43 AM	#12
Kevin Thomas Street Racing Instructor Moderator Member#: 110 Join Date: Jul 1999 Location: 1997 OBS, 1996 SVX, 1988 RX Vehicle: 1989 1989 XT6	What exactly do you mean by 'rough idle'? I mean in detail, what is the car doing and at what rpm? Is it while driving and the car is stopped and idle or just when the car is sitting parked? Is it consistent or does it be rough off and on? Trying to decipher it it could be hose related, IAC, MAP, something else electrical, mechanical...bad gas.