Pelican Parts Forums - Question on Boxster Common Engine Failures

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Hello, I have a 2000 Porsche Boxster with 73k miles, it has a 2.7 engine and has been maintained every 5000 miles, I do the work on it myself.. And currently my car is parked because there's a leak somewhere and its landing on my exhaust creating smoke, I replace the air oil separator a while back I can't see any cracks on my engine cover, in the code reader I only get the 02 sensors fault codes and I believe that's because they got full of oil .. Any ideas? Thank u

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This post was auto-generated based upon a question asked on our tech article page here: Pelican Technical Article: Common Boxster Engine Problems and Failures - 986 / 987

I would assume the valve covers, camshaft plugs or adjuster O-rings are leaking.

- Nick

It isn't impossible that a "new" AOS is bad. But more probable that your intake and throttle body are crudded up with oil from the old AOS. And were all the hoses connecting to the AOS and disconnected replaced? The leak is most probable in something that was worked on or moved in the process.