Even though your car is non-turbo there is a machined hole for the turbocharger's oil return line.
This hole is capped and that cap can come off. I've seen pictures so it must be true.
There was a p/n for the cap in the post I read.
That's all I have. Kira

Alan - on a P2 the fuel delivery system can die without any codes - if you have the no-start, check the fuel pressure at the rail for a solid 50 psi. The trouble spots are ... Fuel relay (bonded to the CEM) - usually goes with other things. PEM - module located in the rear trunk or on top of tank. I...