Aos failure & more

[flouese]

I replaced my AOS 15K miles ago. Now at startup I get a burst of white smoke, while at idle I have some smoke.
1. How long should an AOS last?
2. Am I experiencing AOS failure?
3. Would the P410 CEL code be a contributing factor to the white smoke and not AOS failure?

Of course this is happening just before the 20th anniversary celebration of the Boxster at the Omni Resort in Amelia Island Next weekend.

But wait, there is more, looks like my CPS is also on the way out. Getting harder and harder to start. Tach does not move during start up (how much should it move?)