blaydrunner

Cone filters do not come in a stock un-oiled "paper" form to my knowledge...they all must be oiled. K&N filters and any other Cone filter that is oiled comes "pre-oiled" from the factory. I have to use a non stock air filter since the TPC supercharger eliminates the Factory Airbox.

Cheers!
GL

1999Porsche911

Get youself a scanner that will display the various readings of the sensors. O2, MAF, etc. Only by having the ability to see what the sensors are actually doing can you begin to diagnois the problem. Typical response by a dealer is replace, replace, replace. If you went to the dealer because your alarm system didn't work, they would replace the MAF.

msrc2

My dealer advised against a K & N for the very same reasons cited in the first post. He claims they have seen several MAF problems/failures in cars equipped with K & N....most were DIY, and were done incorrectly to begin with.

blaydrunner

I called K&N to get an answer about there filters and if they have had problems with 996 MAF sensors....the Service Rep said he had heard of these problems...asked how much money had been spent on replacing MAF sensors...stopped talking...and IMMEDIATLEY wanted to put me over to the Claims Dept. I left a message. We'll see what happens.

Cheers!
GL

The_Phantom

Ok, I want to start cleaning the MAF since I use a K&N Filter. How should I do that? Remove the MAF clip from the rubber tube that goes to the throttle body and spray it with either starter fluid or carb cleaner? Anything else need to be done?

1999Porsche911

Nope. That's it. For regular cleaning, using electronics spray cleaner will suffice.

bigdude

mine went out at 25k miles-no k/n filter-wasnt that expensive to replace

Appleads

Let me add that I have a non-K&N 996 with just 20K on it, and my MAS has crapped out. I cleaned it, replaced it and it still triggered the codes. So I installed a new one, cleared the codes, and now I can't pass emissions inspections because the "readiness" codes have not reset or something, despite 45 miles on the clock. Anyone have any experience getting emissions inspection completed. How many friggin miles do I have to drive to reset the computer? Porsche told me 5 to 15, but that was obviously wrong because I failed at 45 miles. Well, didn't actually fail, just aborted because the computer was not "reset" despite the fact the codes had been cleared. Ahhhhhhhhhhhhhg.

1999Porsche911

Depending on what year car, it is not he miles that reset the compuer monitoring, but the number of drive cycles. Everything should be ok after 2 - 3 cycles.

The_Phantom

Yeah, what does a new MAF cost?

Billhero

I just bought one from Sunset Porsche for around $270.00.

teflon_jones

$270 is a great price, they're usually closer to $350 from a lot of dealers!

blaydrunner

Well....I'm at a total loss now.

The K&N filter was taken off completely and replaced with a custom made paper/foam filter with no oil....the MAF crapped out again!!!! Sumpin ain't right. Could the Computer that was installed for the Supercharger be frying these things by accident...a wiring short....anyboby have any suggestions to what it could be...Bueller...Bueller...Bueller???

Cheers!
GL

wyo996

I had the same problem when I changed my cone K&N on my Evo SC. Todd told me to soak the new filter in soapy warm water then air dry and not re-oil. He does that to all his instals. I have had no trouble since. My expirence with cleaning the MAF has been it only helps temporarily and then the problem recurrs. Perhaps with the increased air flow of forced induction it draws more oil out of the filter onto the MAF. Also remember the MAF changed slightly from 2001 to 2002 so check the numbers closely. They will work but the car will not run right. I know everyone will say the filter does not work as well without proper oiling but that is just the way it is,and Todd at Evo will agree. Will

1999Porsche911

What are the readings of the MAF? Have you hooked up your scanner and looked?