How to clean the mass air flow sensor??

Thanks for this thread! Used contact cleaner coz I couldn't find one of those Mass Air Flow cleaners here in the Philippines.

My thanks...

I've seen the question asked but I guess I didn't see the answer. Where exactly is the MAF located? Anyone have a good photo of the location?

I have a Conforti intake, can I just take out the tube with the MAF and spray it with the CRC or is it better to spray the sensor while out of the tube? I want to eliminate the chance of breaking the MAF.

Thanks

you cant take the sensor out of the tube..

just unscrew the rear clip pop out and clean through the rear through the plastic bulls eye grate.

if you clean through the front..youre gonna have to spray through the metal mesh and plastic grill so do it from the rear side of the maf..

not really that hard to figure out

Cool thanks, I'm going to clean mine tonight.

I'm glad i found this infomation. I have a 2002 325ci I bought wrecked that Im trying to get back on the road. For the first time I went for a test drive the other day and when I accelerate to about 2000 rpm, the car wants to die and then it kicks back in at 1000 rpm. Now if I accerate slowly it will get up to about 3500 rpm. Also the engine light is on. I trailered it to AutoZone, they hooked up their meter and it said I have a bad MAF. Although when I disconnect the MAF plug it accelerates fine. I am going to try your advice about cleaning it with the MAF cleaner and see if that does the trick.

So once i clean the MAF and reinstall, will the service engine light turn off by itself?

No you're gonna have to get it cleared. Ive seen gas cap lights, abd cam sensors codes clear after 3 driving cycles but i wouldnt count on the maf. Go to get it scanned and cleared. Try to purchase a new maf from the dealers and eat the cost then buying some cheap one off ebay. ive read too many stories about people who buy remanufactured pieces that go bad the first day. Good Luck!

brake cleaner is very harsh on plastic and rubber. i would avoid it. get an empty spray bottle (or empty one) and use rubbing alcohol with the spray nozzle set to stream. only of course if you cant get the CRC stuff. Im going to get some now and see if it fixes my MPG issue. im also gonna start a new post bc i have no SES light and i lost 80+ miles to a tank. (no its not leaking)

sbscrbd for later

Originally Posted by Acarder

Why does this thread have like, ten thousand views and 15 replies

Because the answer was already posted. CRC MAF cleaner and read the damn directions....

Originally Posted by aaronu

MAF getting messed up from an oiled filter is not from extra contaminants getting in. It's from extra oil on the filter getting into the air intake stream and contaminating the MAF "hot wire". That throws off the air density readings, which in turn change what the ECU does. Example: maybe you drive your car at sea level but the ECU thinks you are at 5600 feet elevation. The ECU will dink with fuel ratio, timing, or who knows what else to compensate for what it sees as leaner air. The worse that the MAF is off, the worse your car will run.

So yeah, just get a can of MAF spray. I use CRC MAF cleaner as well, every time I clean and re-oil the filter. +1000 on don't touch the MAF sensor wire.

Also if you have any type of oiled filter, pick up a cleaning/re-oiling "recharge" kit. If at all possible, get one with a spray oil. And SPRAY LIGHTLY. If you think the filter has just enough oil, it probably has too much.

And don't clean the filter too often. They can go for a LONG time between cleanings. If you live in a sandy or dusty area, maybe invest in a prefilter sock you can remove and clean.

Thanks for the thorough explanation. I think you just explained the trouble I am having with my E46, after cleaning & re-oiling K&N filter

GOOD DAY TO ALL. I'M ACTUALLY NEW TO THIS, BUT COULD ANYONE EXPLAIN TO ME THE REMOVAL OF THE AIR FLOW(mass) METER. MUCH APPRECIATED.

too easy.

Thanks for the DIY... gonna do this soon.

I've ordered the CRC cleaner from Turner Motorsport along with an OEM air intake filter, and a lot of other self-pleasing junk!

If anyone is having trouble locating this product (CRC MAF Sensor Cleaner), Turner has it for $8.99:

http://www.turnermotorsport.com/html...ODUCT_ID=05110


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Hello

I have a strange question. Can I clean MAF with this cleaner?(see picture below)

Unfortunately I could not find CRC cleaner here. Otherwise I'll have to use alcohol

Thanks in advance

Originally Posted by Kotler

Hello

I have a strange question. Can I clean MAF with this cleaner?(see picture below)

Unfortunately I could not find CRC cleaner here. Otherwise I'll have to use alcohol

Thanks in advance

NO!

Only use CRC MAF cleaner. If you cant find it locally, the site sponsors sell it.

$6.99 @ O'Reilly's

Where is the MAF at?

I saw the picture and you just take it off and it is right there? Really that simple?