K&N and MAF!?
Thread Starter
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1st Gear
Joined: Feb 2008
Posts: 70
K&N and MAF!?
Hey Guys, I have heard, and it seems possible that the oil used in a "recharging" a K&N filter can foul the MAF. Have any of you had any experience with this? My last MAF went bad pretty soon after I oiled my last K&N on my S4 coincidence or not?. My TT need a cleaning and are weighing the options of cleaning vs replacing with a dry filter. Let me know you thoughts and experiences with filter cleaning. Thanks!
Thread Starter
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1st Gear
Joined: Feb 2008
Posts: 70
Thanks Danzan, so you think clean/oil it. wait a bit then clean the MAF? would cleaning it be a permanent solution or does it only buy time with the MAF? What I am asking is, does the oil permantly damage the MAF or is it good as before after it is clean off? Thanks!
Junior Member
Joined: Apr 2010
Posts: 24
the oil does not permanently damage the maf, but it results in false air flow readings.
the problem will eventually recur unless you switch to a dry filter.
CRC maf cleaner works really well. you will see the deposits on the maf elements & see how effective the CRC is in removing them.
no, i am not a CRC salesman
the problem will eventually recur unless you switch to a dry filter.
CRC maf cleaner works really well. you will see the deposits on the maf elements & see how effective the CRC is in removing them.
no, i am not a CRC salesman
Junior Member
Joined: Jan 2010
Posts: 6
From: Houston, TX
If you LIGHTLY oil the K&N, you shouldnt see a mess of oil getting sucked through the filter and fouling the MAF. I personally think that many k&n owners over-oil their filters.
Here's some info straight from K&N on the subject:
http://www.knfilters.com/MAF/massair.htm
I agree with danzan - there may be a better cleaner out there, but I'm familiar with CRC, its available everywhere, and it does a decent job. I would clean the MAF first, then clean, lightly oil, and run your K&N a bit. Give it a little time and take it off and check the MAF again (should be easy to get to without the stock airbox in the way) after a while to see if any new deposits have formed on the MAF.
If you don't want to deal with it, you could go to a dry filter. I know some guys really like the "mushroom" filters from HKS / Trust.
Something that may be worth reading is this air filter comparison:
http://www.australianauto.com.au/HTM...hoot%20Out.pdf
It seemed reasonably scientific and un-biased. I personally run a K&N on my TT and have had no problems yet.
Here's some info straight from K&N on the subject:
http://www.knfilters.com/MAF/massair.htm
I agree with danzan - there may be a better cleaner out there, but I'm familiar with CRC, its available everywhere, and it does a decent job. I would clean the MAF first, then clean, lightly oil, and run your K&N a bit. Give it a little time and take it off and check the MAF again (should be easy to get to without the stock airbox in the way) after a while to see if any new deposits have formed on the MAF.
If you don't want to deal with it, you could go to a dry filter. I know some guys really like the "mushroom" filters from HKS / Trust.
Something that may be worth reading is this air filter comparison:
http://www.australianauto.com.au/HTM...hoot%20Out.pdf
It seemed reasonably scientific and un-biased. I personally run a K&N on my TT and have had no problems yet.
3rd Gear
Joined: May 2008
Posts: 1,612
From: south florida
Yeah, oil soaked air filters and mafs are a bad combo. I replaced my K&N with a dry flow from AEM. I soaked my sensor in a shot glass full of rubbing alcohol. Runs better than it ever has. Just make sure you let the MAF dry completely.
