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Old 11-11-2010, 05:49 PM   #1
nunez07c
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Location: New Jersey
Default MAF Cleaning Help...

So my 04' WRX has a CEL P0304, and since I replaced the spark plugs a month ago - to fix other misfire codes - I guess that is not it, so I decided to buy CRC MAF cleaner to see if that can take out the code. The only thing is I really dont know how to clean a MAF. I was wondering if there is a tutorial on how to do this anywhere, I've been looking but no luck.



Thanks everyone, I'm a noob (this is my first car).
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Old 11-11-2010, 06:00 PM   #2
recce02
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Location: Good ol Temecula
Vehicle:
02 GCRally prepped
277TQ 281HP 19PSI

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Just pull the sensor out of the air box and spray the MAF cleaner on it. Let it air dry, should take a minute or two and re install.
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Old 11-11-2010, 09:05 PM   #3
joserpm
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Location: Lakeland, FL
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2007 Impreza WRX
WR Blue Pearl

Lightbulb

That's it...unscrew the sensor from the intake...unplug it and spray it with MAF sensor cleaner spray....but DO NOT TOUCH THE SENSOR WITH YOUR FINGERS. then carefully plug it and reattach to the intake...all done.
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Old 11-11-2010, 11:30 PM   #4
txl146
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02 WRX VF34
Junior Tuned 301whp

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When you unplug it, you will see a sensor outside. That's not the MAF sensor; instead, spray inside the housing thoroughly.
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Old 11-12-2010, 12:29 AM   #5
nunez07c
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Default

Ok, so just take the MAF which is housed with the two screws and just spray that and the housing, correct?? I really don't want to mess this up cause I've heard that this is an expensive piece even though my father gets new parts for very cheap (big discounts) from NAPA.



THanks everyone.
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Old 11-12-2010, 01:41 AM   #6
joserpm
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2007 Impreza WRX
WR Blue Pearl

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Quote:
Originally Posted by nunez07c View Post
Ok, so just take the MAF which is housed with the two screws and just spray that and the housing, correct?? I really don't want to mess this up cause I've heard that this is an expensive piece even though my father gets new parts for very cheap (big discounts) from NAPA.



THanks everyone.
That is 'correcto'. Spray the housing...and as long as you don't touch the actual sensor inside with your fingers, you'll be good to go.
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Old 11-20-2010, 10:44 AM   #7
vlc92189
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2004 Subaru WRX
PSM

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what is MAF spray? intake cleaner?
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Old 11-20-2010, 01:50 PM   #8
txl146
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Junior Tuned 301whp

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if you go to autozone, you can easily find "MAF spray". It's not the intake cleaner.
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Old 11-21-2010, 06:52 AM   #9
fastwrx25
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CRC MAF cleaner spray. autozone/pepboys/etc. red can.
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Old 11-22-2010, 09:08 AM   #10
nunez07c
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Well, I cleaned it.
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Old 11-22-2010, 09:08 AM   #11
nunez07c
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DID not mess anything up >.<
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