ECU Flash Tune...

[986 Boxster]

Originally Posted by blue62

Using an oiled air filter on any car using a MAF Sensor and or a MAP Sensor is asking for problems.
So that's pretty much any car manufactured and sold in the USA from about 1994-1996 on.

I have K&N air filters on all my cars and never had any problems. The only reason I took it out of the Boxster was to clean it, I was planning on putting it back at the next oil change. After doing some reading that they might screw with the Maf sensor in the long run I might just leave it out.

[blue62]

Originally Posted by 986 Boxster

I have K&N air filters on all my cars and never had any problems. The only reason I took it out of the Boxster was to clean it, I was planning on putting it back at the next oil change. After doing some reading that they might screw with the Maf sensor in the long run I might just leave it out.

When I bought my Boxster a few years ago I got very interested in OBDII and how it functions.
So being retired I had lots of time to do research. I found that the hot film and the hot wire MAF sensors are very sensitive in many ways.
I found pictures of MAF sensors that were magnified (microscope). They showed how the coating on the hot wire and the hot film would erode under different conditions. like they had been sand blasted or dirt, oil coated.
Thus altering reliability or causing premature failure.
Some of those conditions were specifically different types of air filters. Convinced my that any oil type air filter is a no no.