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Old 06-11-2018, 04:37 AM   #1
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Question about air filter and oil underneath

All,
I pulled the MAF sensor yesterday after getting a P0434 code. I followed the directions from Pelican. I noticed I did not have anything covering my air filter and my filter looked like the picture below. I just wanted to see if that was normal.

Also, I took some pics of the underside of the car. There is some oil residue. The only level is good. I checked it when I got it and it keeps showing good at startup. I have driven around 750 miles on it. I welcome anyone's thoughts about it. Thanks.

Also, please let me know if I have a cartridge type oil filter or spin on.











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Old 06-11-2018, 05:42 AM   #2
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The previous owner messed up the air induction by installing that air filter. Get it back to factory specs by removing that filter and reinstalling a proper airbox, filter and inlet tube.

You have a cartridge oil filter.
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Old 06-11-2018, 05:46 AM   #3
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The previous owner messed up the air induction by installing that air filter. Get it back to factory specs by removing that filter and reinstalling a proper airbox, filter and inlet tube.

You have a cartridge oil filter.
Anker,
Thank you for the reply (and I saw your other one about the oil fill tube). I thought it was messed up. I will have to figure out where to get an airbox.

Any thoughts on the oil underneath?

Chris
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Last edited by TiberiusBoxster; 06-11-2018 at 05:53 AM.
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Old 06-11-2018, 10:12 AM   #4
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Any thoughts on the oil underneath?
There are multiple sources of oil leaks on a Boxster and oil has an uncanny ability to leak in one place, run down, and then drip from somewhere else entirely.

The best way to find where the oil is coming from is to clean it up and then inspect it daily until you find the exact source.

Also, be prepared for a wrestling match to get the stock air box back into the engine compartment. Its a super tight fit such that many owners who remove it, cut the stock air box into pieces to get it out in the first place. Getting it back in can be done, just be patient and work at it methodically.
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Old 06-11-2018, 02:40 PM   #5
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There are multiple sources of oil leaks on a Boxster and oil has an uncanny ability to leak in one place, run down, and then drip from somewhere else entirely.

The best way to find where the oil is coming from is to clean it up and then inspect it daily until you find the exact source.

Also, be prepared for a wrestling match to get the stock air box back into the engine compartment. Its a super tight fit such that many owners who remove it, cut the stock air box into pieces to get it out in the first place. Getting it back in can be done, just be patient and work at it methodically.
Do you think the air filter was supposed to be a performance enhancer or just stupidity on the part of the PO?

Also, as far as cleaning the oil, I was thinking of using Purple Power on this to clean the oil. It is industrial grease and grime cleaner. Any concerns?

Thanks again.
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Old 06-11-2018, 08:31 PM   #6
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YOU should buy our hosts book on projects for your Boxster......https://www.pelicanparts.com/More_info/BK-145835.htm?gclid=Cj0KCQjwu_jYBRD8ARIsAC3EGCKdEmNEQ NRG2R2pPHduVzOmcIIhKeisGa9UuyNhlBK9rDQ_Syx_fYIaAi4 mEALw_wcB



best $25 you will spend on the car.
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Old 06-11-2018, 08:46 PM   #7
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Do you think the air filter was supposed to be a performance enhancer or just stupidity on the part of the PO?
Let's give the PO the benefit of the doubt and say that he simply wanted a stronger engine intake sound.

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Also, as far as cleaning the oil, I was thinking of using Purple Power on this to clean the oil. It is industrial grease and grime cleaner. Any concerns?
I'm not personally familiar with Purple Power, but any regular degreaser should be fine.
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Old 06-12-2018, 04:21 AM   #8
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Boxfix,
I plan to buy it. I have already used the online version. That is how I found that my air filter did not match the stock pic.

Thanks,
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Old 06-25-2018, 08:18 AM   #9
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Gents,
Is this the part I need to put the air filter back to stock? https://www.ebay.com/itm/98-04-Porsche-Boxster-986-Air-Intake-Filter-Cleaner-Housing-Airbox-Box-OEM-/162760571876?_trksid=p2385738.m4383.l4275.c10?

Thanks,
Chris
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Old 06-25-2018, 08:27 AM   #10
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Thatís the part you need to get it back to stock. Another thing you can do is install a 987 air box as an upgrade. I installed mine by cutting it up and reassembling it inside the car. Thereís a write up on it on this forum and itís easy as you donít need to remove any manifolds.
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Old 06-25-2018, 09:19 AM   #11
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considering you're getting a free MAF still in that too (2nd last pic) that's not a bad deal
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Old 06-25-2018, 11:24 AM   #12
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I don't know that ebay seller - I usually get my used parts from Woody (forum member ItsNotaNova - 512-925-9171) or from ebay seller QualityPorscheParts if he doesn't have what I need. I like to buy my new parts from Pelican (1/2 my car is from Pelican!)

But that looks like a good deal. I would still try Woody first - he might be able to beat that price and he may have some advice on how to get it into your car...

Also...

That is the original oil filter assembly. The filter housing is made of a kind of plastic. It unscrews and there is a pleated paper element inside that presses up over a metal tube that sticks down, and the housing is screwed on over it.

An LN spin-on oil filter adapter would be a great upgrade... The bypass spring in the stock filter housing gets weak with age and can allow dirty oil to bypass the filter. Switching to the LN adapter and spin on filters fixes that. Plus, you'll be able to get new filters at your local NAPA or O'Reilly store... (and they'll cost less too)...
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Old 06-25-2018, 05:50 PM   #13
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"stock filter housing gets weak with age and can allow dirty oil to bypass the filter" ... or just buy a new housing with filter next time you do a change, it costs like $5 more than the filter alone.
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Old 06-25-2018, 08:48 PM   #14
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"stock filter housing gets weak with age and can allow dirty oil to bypass the filter" ... or just buy a new housing with filter next time you do a change, it costs like $5 more than the filter alone.
Yup. That works too.
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Old 06-26-2018, 03:55 AM   #15
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Thank you all for your replies. I wanted to make sure I got the correct part. IRT the oil filter, I will check into the spin on filter.

Thanks,
Chris
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Old 06-26-2018, 11:03 PM   #16
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Wow... that filter is nasty. As it is an oiled filter, it is possible the oil residue you have under could be from it. Your car will thank you for installing the proper airbox!

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