I replaced the stock air filter on my 2001 boxster with a k&n two days later the engine light came on. I am told that this is commen due to the amount of oil the company puts on the filter interacting with the mass airflow sensor. I used the suggested cleaner and so far it is off. Thanks this site is great it has always helped me with repairs on my Porsche .

__________________
This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: Troubleshooting and Replacing the Boxster Mass Air Flow Sensor (MAF) - 986 / 987

Yup, I'm not a huge fan of "reusable" filters, as I don't believe that they filter as well as the stock units. I have one of these on my own Boxster, but that's because we have a special cold-air intake system that we had to install when we put in the 3.4 engine.

- Wayne

I've had the EVOM CAI reusable system in my '99 for six months and have had no problems with it from day one.

I had the problem after I re-oiled the filter according to the included instructions