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View Poll Results: How often do you clean your MAF sensor?
Once a month or more 22 3.38%
When i change my oil 91 14.00%
When it needs it, I can tell by my EM or my butt dyno 158 24.31%
NevAR 382 58.77%
Multiple Choice Poll. Voters: 650. You may not vote on this poll

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Old 07-01-2011, 10:55 AM   #151
xtremesk8er21
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Quote:
Originally Posted by SBW
Damn, wish I saw this when I swapped turbos. Now I gotta take sh** apart!
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Old 07-01-2011, 08:50 PM   #152
booSTIfied
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Quote:
Originally Posted by modaddict View Post
I would like to know how often you clean your maf sensor. I usually do mine about once a month or so.
you have to clean that? are you talking about inside the tube or outside?
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Old 07-03-2011, 02:50 AM   #153
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roughly every 3-4 oil changes... annually then I suppose
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Old 07-05-2011, 02:12 PM   #154
thenewrick
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I'm going to try this myself soon with MAF cleaner. I saw a video on how to clean a mustang one but is it basically the same deal with the subaru MAF? Just take it out, spray it a bunch, let it sit for an hour and reinstall? Anything I should know about wiping it or anything? I am currently a stage 2 cobb map, I don't need to reset anything to clean the MAF right?
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Old 07-05-2011, 03:33 PM   #155
DrInline6
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Quote:
Originally Posted by thenewrick
I'm going to try this myself soon with MAF cleaner. I saw a video on how to clean a mustang one but is it basically the same deal with the subaru MAF? Just take it out, spray it a bunch, let it sit for an hour and reinstall? Anything I should know about wiping it or anything? I am currently a stage 2 cobb map, I don't need to reset anything to clean the MAF right?
just spray and dont use wipe it and dont use carb cleaner
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Old 12-14-2011, 02:34 PM   #156
vlc92189
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How do I reset my ECU if I am using Cobb Stage 2 AP? Is it the same with or without the the AP because I would like to clean my MAF, and IACV valve the same time but I hear it is neccesary to reset the ECU. Thanks guys
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Old 12-14-2011, 03:15 PM   #157
flycaster
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You don't need to reset the ECU, but if you want to just use the AP. Make sure you're still running the right map, however, as I'm pretty sure a reset will delete any realtime map you have loaded; the base map will still be there, but any realtime map and all learning will go bye-bye.
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Old 12-16-2011, 11:05 AM   #158
vlc92189
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So its not neccesary then when cleaning the MAF and IACV? I just dont want anything to go wrong, and hear people of resetting the ecu.
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Old 12-16-2011, 11:10 AM   #159
xtremesk8er21
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An ECU reset (disconnection of battery) is a good idea with any "new" mod. It let's the ECU learn the clean MAF values easier. But as stated above, make sure your running your correct map if using an AP.
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Old 12-16-2011, 11:18 AM   #160
flycaster
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You can reset the ECU with the AP, no need for a battery disconnect.
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Old 12-16-2011, 11:30 AM   #161
xtremesk8er21
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Quote:
Originally Posted by flycaster
You can reset the ECU with the AP, no need for a battery disconnect.
I was stating that if in fact they weren't running an AP
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Old 12-16-2011, 12:28 PM   #162
flycaster
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I figured that, but vic92189 has one and I didn't want him to get confused. I'm kinda surprised, however, that he hasn't noticed the "reset ECU" option on the AP menu...
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Old 12-16-2011, 06:49 PM   #163
vlc92189
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haha.. I did.. but thanks guys, im going to do it tomorrow. I just didnt know when resetting the ECU if I should do it through my ECU, or there is a process in doing it elseway. thanks guys.
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Old 12-17-2011, 05:58 PM   #164
cjkocol
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I have never cleaned mine nor had problems and I use a K and N filter, but will probably switch over to a dry flow filter soon to avoid problems
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Old 12-18-2011, 12:06 AM   #165
gurusan
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I clean mine every other oil change when I rotate tires. It takes just a couple min and is cheap. Why wouldn't you do it?
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Old 12-04-2012, 12:24 PM   #166
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Quote:
Originally Posted by Badler View Post
I have 85k and have never done this. :facepalm:
I'm at 97k and mine very well may have never been done. I've had it for the last 3-4k.

My AF learning 1 values have been in the 8-11% range. I did a vacuum test and it didn't show any leaks. MAF is next on my checklist... and maybe even an O2 sensor... but you can't clean those.

Thanks for the thread.
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Old 12-04-2012, 03:54 PM   #167
WhatTurboLag?
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Never, I don't have one
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Old 12-04-2012, 03:57 PM   #168
drewvdw
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^^^Damn...you beat me to it
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Old 12-10-2012, 10:12 PM   #169
scoobychik88
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How do you know if your MAF is dirty & are their symptoms for it being dirty? I'm not sure If that is the case, or If I have a vacuum leak.
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Old 12-10-2012, 10:22 PM   #170
coalslaw
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what does cleaning the MAF do? instructions to clean it?
-on behalf of the curious souls
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Old 02-04-2013, 05:32 PM   #171
cmiovino
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Just reporting back... since finding this thread, I cleaned mine.. 2004 WRX with 98k and I'm assuming it's never been touched. It was dirty, but not as dirty as I would expect.

Didn't do a damn thing for mileage or for my high AF learning values. Turns out, it was a leaky BPV gasket causing that.

As for cleaning the MAF, I'd only recommend it if you have a MAF related problem.... or 'maybe' every 100k. Butt dyno didn't change, even after resetting the ECU and letting it learn.
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Old 12-11-2013, 03:31 AM   #172
spoolinw00t
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I gave this a try after neglecting it for so long.. I instantly did feel a certain change in the smoothness and idled a bit lower (I was idling at 1500 rpm). Either the seafoam I did earlier in the day fixed the idling, or cleaning the MAF did. Either way, should be done. Wish I would have done this before.
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Old 12-11-2013, 12:59 PM   #173
BigAir
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2008 WRX with AEM CAI (tuned) among other mods. My idle would drop every 15 seconds or so. I think from 750rpm down to 600-650 and right back up. Never felt like it would stall. However, it would drop more when coming to a stop. I cleaned my filter and the MAF with a MAF cleaner and the problem disappeared. It's been about 6 months and I am starting to have the same problem. I will clean and see if that helps.
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Old 12-11-2013, 02:11 PM   #174
sc00ter
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I clean mine during every oil change since it takes all of 10 seconds. I use this:



Quote:
Originally Posted by flycaster View Post
I figured that, but vic92189 has one and I didn't want him to get confused. I'm kinda surprised, however, that he hasn't noticed the "reset ECU" option on the AP menu...
I've never thought about using my AP to reset the ECU either. I always just unplug the battery while I go through the whole oil change process. Since my AP sits in a drawer in my nightstand it would be more of a hassle to go get it, plug it in, reset the ecu, unplug it and take it back upstairs than it would to just unplug the battery real quick.
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Old 12-11-2013, 02:26 PM   #175
acumenhokie
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Poll needs to be updated to include an "I don't have a MAF" option.
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