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K&N Filter and the MAF Sensor by RotrexFiero
Started on: 05-06-2011 10:49 PM
Replies: 2
Last post by: 1fatcat on 05-06-2011 11:04 PM
RotrexFiero
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Report this Post05-06-2011 10:49 PM Click Here to See the Profile for RotrexFieroClick Here to visit RotrexFiero's HomePageSend a Private Message to RotrexFieroDirect Link to This Post
I am not sure but I may be having problems with my MAF sensor, since I have a oily K&N Filter. I found this at their website:

We are aware of the “urban myth” (K&N News Story) created by a few dealerships that a vehicle's MAF sensor can be contaminated by K&N filter oil. No evidence has ever been provided to support this “myth” and three years of diagnostic testing by K&N has shown that not only is this allegation not real, it is not even possible. In our opinion, it is an excuse for a dealership and/or the vehicle manufacturer to avoid a legitimate warranty repair. In the last 4 years, we have sold over 10,000,000 lifetime air filters and received only a few hundred calls from consumers who are having dealership or service provider challenges. We believe that Dealership's or service provider's real incentive may be to discourage the use of reusable products so they can sell disposable products over and over. In order to provide consumers with added comfort that they will not be placed in a bad position by an improper warranty denial, we offer our Consumer Protection Pledge.


I watching the "extreme testing" they did saying it was impossible for oil from the filter to find its way into the intake and foul up the MAF sensor. But, the engine was not supercharged.

What is the consensus here?

[This message has been edited by RotrexFiero (edited 05-06-2011).]

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topher_time
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Report this Post05-06-2011 10:57 PM Click Here to See the Profile for topher_timeSend a Private Message to topher_timeDirect Link to This Post
If you follow K&N's instructions, you will be fine.

I have seen them cause some nasty issues, but that was due to user error.
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1fatcat
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Report this Post05-06-2011 11:04 PM Click Here to See the Profile for 1fatcatSend a Private Message to 1fatcatDirect Link to This Post
The oil can get on the sensor, it's not impossible or even difficult. The oil is not so much a problem though. The problem is that the sensor is probably already dirty when the oil hits it, thus turning the dirt into oily dirt and making the sensor reading inaccurate. Although just dirt on the sensor will do this, the problem is amplified by oil.
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