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View Poll Results: How often do you clean your MAF sensor?
Once a month or more 22 3.40%
When i change my oil 90 13.89%
When it needs it, I can tell by my EM or my butt dyno 158 24.38%
NevAR 381 58.80%
Multiple Choice Poll. Voters: 648. You may not vote on this poll

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Old 02-08-2010, 04:13 AM   #101
TheNailman
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cool thread. will try this when the temp breaches the freezing mark.
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Old 02-08-2010, 04:14 AM   #102
bryantkalagian
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Quote:
Originally Posted by hvymetal86 View Post
The hollow of the MAF is the open inside of the tube going up from the bottom (farthest into the intake when it's installed) to the top with the plug. The heater wires are very hard to see, but they're up inside the hollow tube. When it says indirectly spray it means not straight up into the tube, but angled so the spray hits the walls of the tube before it hits the heater wires.

what should i use to clean it?
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Old 02-08-2010, 04:20 AM   #103
bibs
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found a bottle of this at thome, do i need MAF specific cleaner or will this work ?

http://www.lpslabs.com/product_pg/cl...g/CFCFree.html
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Old 02-08-2010, 08:49 AM   #104
TheNailman
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just did mine, and then did some errands around town.
it DOES seem to run a little smoother. .. .not a giant difference though.
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Old 02-09-2010, 06:25 PM   #105
AspenSti06
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by any chance does anyone know the part number for stock maf screws for a 06 sti?

EDIT: Part Number is 904510056

Last edited by AspenSti06; 02-10-2010 at 05:48 PM.
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Old 03-09-2010, 09:35 PM   #106
jays05
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Wow, the other day my car started stalling out and while cruising, AFRs were jumping between 16 and 11. I also got a P0030 CEL for the front o2. I was right about to replace the front o2 when I decided to log the MAF... sure enough the MAF volts were jumping around when AFRs did. I took the MAF out, cleaned it, and all the symptoms + CEL disappeared!
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Old 03-10-2010, 10:23 AM   #107
inCLINEd
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I did some logging mpg before and after cleaning the maf. Before I was averaging 16.3mpg with a peak (highway driving) of 22mpg. After the cleaning and a little time to let the ecu relearn, im averaging 19.7mpg and peak at 23.9mpg on crappy winter blend. Defn worth the 3 minutes it takes to do. :thumbup:
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Old 03-10-2010, 03:44 PM   #108
BENSREX
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I've never used any type of "cleaner." I've always just used a clean q-tip and rubbed the MAF gently, then reinstalled.

Does this do the trick? Or am I doing it all wrong?
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Old 05-05-2010, 09:10 AM   #109
roccer
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i don't think the MAF on my 06 has ever been cleaned. finally figured it cant hurt so stopped at advanced auto parts on my way home and picked up a can of CRC's MAF cleaner. cleaned the MAF and reset the ECU and performed the vishnu ecu reset this morning on my way to work.

maybe im crazy but i noticed the engine seemed to act a lot smoother and a lot of the low gear, low speed bounciness (1st gear @ 5mph as en example) was gone or greatly diminished. figure cleaning this is good prep work as i prepare to go stage 2 later this summer. and thanks nhluhr for the easy instruction on how to clean the MAF with least risk of damaging it .
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Old 05-05-2010, 09:15 AM   #110
Ryan314
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Once a year every spring.
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Old 05-06-2010, 09:12 AM   #111
BENSREX
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I thought the decreased power/rough idling was my MAF so I cleaned it. Nothing happened.

Then I remembered that I haven't cleaned my K&N air filter for 25-30,000 miles... the car is back to normal after the air filter clean! Woo. Just thought I'd share for anyone else that hasn't cleaned/changed the air filter in a while.
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Old 05-06-2010, 12:28 PM   #112
Bakerbrdz
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this thread is stupid!!!
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Old 06-03-2010, 08:12 PM   #113
RdRx02
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Thanks for the pics and answers to the how to's on this topic. I've gotta try this as mine has probably never been cleaned. Hopefully something good comes of it and if it does I will post the difference.
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Old 07-08-2010, 05:12 PM   #114
blackwrx07
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I went right outside and looked at mine, guess what? 33k miles and it was pretty fouled. Cleaned up in a jiffy, now that I have a K&N filter I'll do it regularly. Good thread.
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Old 07-08-2010, 08:16 PM   #115
Skullyg
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Quote:
Originally Posted by Bakerbrdz View Post
this thread is stupid!!!
^ whats wrong with this thread..??? I think this is a great sticky for people to know that the MAF should be a yearly or more for scheduled maintenance. A lot of people (like me) wouldn’t be educated about parts like this if it wasn’t for the people who start threads like this.

On another note I was pissed I didn’t see this thread earlier because I had a a/f problem thinking it was my fuel pump control unit, but I traced it back through the ECU to one of the sensors that flag the ECU. Checked my MAF and it was covered completely in carbon. Maybe that’s the reason my first motor blew up. This should be a lesson to people that one sensor not being properly monitored after mods can cause harm to engines. BEWARE!! lol
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Old 07-08-2010, 08:33 PM   #116
fastwrx25
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thanks for the bump, reminds me I should clean my maf.

the car hasn't been feeling smooth at idle and light throttle. I forgot to do this last time I changed oil.
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Old 08-13-2010, 04:46 PM   #117
jgardner9000
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Bump.... Sorry this might seem like a stupid question, but how do I get the MAF unplugged from the wires? Do you just push down on that one clip? Mine won't budge
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Old 08-13-2010, 04:48 PM   #118
NJHK
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Quote:
Originally Posted by jgardner9000 View Post
Bump.... Sorry this might seem like a stupid question, but how do I get the MAF unplugged from the wires? Do you just push down on that one clip? Mine won't budge
push clip down and wiggle it out. Using a flathead screw driver helps.
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Old 08-13-2010, 05:07 PM   #119
jgardner9000
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Yea got it, screwdriver did the trick haha thanks
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Old 08-13-2010, 05:18 PM   #120
NJHK
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Quote:
Originally Posted by jgardner9000 View Post
Yea got it, screwdriver did the trick haha thanks
No problem. I had the same issue with mine...cleaned mine days ago and thats what I did.
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Old 08-13-2010, 11:53 PM   #121
afg786
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got mine 2 days ago, still havent driven it enough to feel it, but does feel a little smoother
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Old 08-14-2010, 12:03 AM   #122
PleiadesSTi
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Thanks for the bump. I'm gonna clean mine tomorrow. It's been over 10k miles, so we'll see how it's doing.
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Old 08-14-2010, 07:34 PM   #123
wariord
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gonna do this today. good thread.
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Old 08-22-2010, 02:43 AM   #124
BLKonBLK05
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hence the screen name

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[QUO...TE=nhluhr;14049719]just fyi - if you do mess up that little o-ring, replacements are hard to find. i had to resort to using a completely different o-ring and "making it fit"[/quote]

If anything happeneds to that o ring it can get messed up...but I found the exact one at Lowe's ....supprisingly it works good as hell...2 for 55 cent..
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Old 01-03-2011, 10:53 PM   #125
Columbo
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Ahem....120k miles. Never cleaned. But I'm REALLY PISSED that I paid $450 to YIMI SPORT in Santa Clarita for a "dyno-tune" and they did NOT check/clean this first!!! ARRGGHHHHH!!! (I told them the air filter was okay...OEM). I will call and ask them if a re-tune is the proper thing to do. (Yeah, they'll probably say nope!) They only got me +6 hp, but I think +10 ft.lbs. of torque on a stock set up.
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