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Discussion Starter #1
i took off my air intake today to install a new TB and I found an oily mess in my intake tube. I've heard that this is from the breather tube that is attached to the valve cover. I'm going to install a breather filter on the valve cover for that so that it won't be connected to the intake anymore.

My question is whether or not I should bother trying to clean up the MAF sensor. If the TB is any indication, the MAF sensor is going to be covered in an oily film. Should I clean it, and how should I go about cleaning it up? If I don't clean it up, will there be any adverse effects since it won't be getting any worse?
 

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do you have to re-oil the filter on the AEM? are you sure it's not from over-doing it?
 

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Well, the oil from the breather filter should not be enough to mess up your intake tube. After about 10K miles, I had oil just enough to barely wet up the stock breather filter(=a small piece of foam)

As suggested, the oil might be comig from over-oiling the main filter. In that case, the maf can also be contaminated. But it is a real pain in the a** to clean it up...

By the way, I have the breather disconnected with a K&N breather filter attached to it for some time, and have no problems with that...
 

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I highly suggest the breather filter. The slight bit of oil also can cause poor performance
 

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Discussion Starter #5
no, the oil isn't from the breather filter... it's definitely engine oil.
 

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If it is engine oil, it must be coming from the breather hose. As far as I know, that tube is there to balance the cranck pressure...

I hope someone with better knowledge clears out the situation, as I am really curious about it...
 

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Your MAF sensor is not that bad to clean go to your nearest autoparts store and by some electrical cleaner in a spray can and drench the elememt. It will not hurt it, just dont put the nozle right at the element. Keep it about 6 to 8 inches away. Then alow it to dry. The cleaner should evaporate some what quickly. Since it is for electrical parts it will not leave a residue.
 
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