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post #1 of 24 (permalink) Old 10-14-2010, 04:37 PM Thread Starter
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MAF Sensor Cleaning..

What's going on guys? I posted a problem I was having with my car earlier in the week and every one seemed to think I need to clean my MAF sensor (I did check my wires and they all seem to be intact with no pinching occuring). Tomorrow Im going to autozone and buying MAF cleaner, so I wanted to ask how should I clean it? I've read that the sensor is a delicate part and I dont have $100 to throw around to replace it. Any help would be appreciated. I figure if the cleaning doesnt work then I'll have to just buy another one. Thanks

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post #2 of 24 (permalink) Old 10-14-2010, 05:01 PM
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Re: MAF Sensor Cleaning..

just remove the MAF sensor, spray the shit out of it with the cleaner, let it dry for a minute and re-install it, might want to spray the connectors as well

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post #3 of 24 (permalink) Old 10-14-2010, 05:05 PM Thread Starter
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Re: MAF Sensor Cleaning..

so if you spray the wires no harm will be done? And just too make sure...the MAF is connected right before the air intake (i have stock) you disconnect the wires, unscrew the screw, pop it out and spray it? Sorry I'm kind of a newb..

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post #4 of 24 (permalink) Old 10-14-2010, 05:26 PM
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Re: MAF Sensor Cleaning..

[quote author=FuzzySlippas33 link=topic=180887.msg3828320#msg3828320 date=1287090359]
so if you spray the wires no harm will be done? And just too make sure...the MAF is connected right before the air intake (i have stock) you disconnect the wires, unscrew the screw, pop it out and spray it? Sorry I'm kind of a newb..
[/quote]pretty much, yeah. I think there is 2 screws. Do not overtighten and strip them, they do not need to be tight at all (note tightness when removing)

And yeah, just use the cleaner and spray it good, you'll be fine. The spray will clean it off (its essentially just isopropyl (rubbing) alcohol) and then evaporate. Once its all dry, put it back in.

Just DO NOT DROP IT.

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post #5 of 24 (permalink) Old 10-14-2010, 05:28 PM Thread Starter
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Re: MAF Sensor Cleaning..

Thanks for the replies guys, hopefully cleaning the MAF will solve all my problems. I feel bad for my car with all the abuse its taken from this..

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post #6 of 24 (permalink) Old 10-15-2010, 11:01 AM
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Re: MAF Sensor Cleaning..

just did this on my girlfriends '04 hatch with 60k miles on it a few weeks ago and it did make a little difference in the "pep" of the engine. mileage was not affected at all though. still getting crap mileage...

can you till which part of the maf was on the intake side?


[img width=768 height=768]http://haste.4saken.org/pics/mazda3/maf/maf1.jpg[/img]

[img width=804 height=768]http://haste.4saken.org/pics/mazda3/maf/maf2.jpg[/img]


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post #7 of 24 (permalink) Old 10-16-2010, 07:16 AM
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Re: MAF Sensor Cleaning..

good pics... and thats nasty looking lol

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post #8 of 24 (permalink) Old 10-16-2010, 12:23 PM Thread Starter
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Re: MAF Sensor Cleaning..

Mine didnt even look that bad, but never the less it didnt help my problem..

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post #9 of 24 (permalink) Old 10-16-2010, 01:01 PM
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Re: MAF Sensor Cleaning..

what's the problem? rough idle?


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post #10 of 24 (permalink) Old 10-16-2010, 01:33 PM
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Re: MAF Sensor Cleaning..

[quote author=haste link=topic=180887.msg3828988#msg3828988 date=1287154861]
just did this on my girlfriends '04 hatch with 60k miles on it a few weeks ago and it did make a little difference in the "pep" of the engine. mileage was not affected at all though. still getting crap mileage...

can you till which part of the maf was on the intake side?


[img width=768 height=768]http://haste.4saken.org/pics/mazda3/maf/maf1.jpg[/img]

[img width=804 height=768]http://haste.4saken.org/pics/mazda3/maf/maf2.jpg[/img]
[/quote]

Just want to make sure you and others know, the water drop looking thing is only the IAT sensor. To clean the actual MAF, be sure to spray the cleanup up into the MAF. That is where the tiny wires are that read the airflow.
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