Engine

I have a 1997 Boxster, 2.5. A couple of weeks ago, the check engine light came on with code P1117: Oxygen Sensor Heating 1 After Catalytic Converter - Below Lower Limit.

About a week later, multiple check engine lights appeared (listed below). I've cleared them, however, they continue to return. 

It seems odd to me that so many problems would appear at once... So, I am guessing that 1-2 primary issues may be the source.

I have searched the PCA site for answers to no avail so here is my question. My Boxster 981 GTS has a very  faint oil and or burning smell after shut down on hot days.  Occurs most noticeably after driving in 90+ ambient temps. Not using oil since last dealer service 6K miles ago, no visible leaks on floor. Car always smells hot after shut down but only a faint bit of oil/burning smell in hot outdoor temps....thoughts? I have been told that the 981 Boxster motor smells hot after shut down and is normal? Thank you for your reply. John

Foam is coming through my vents , doing some research its known as the foam that surrounds the AC and Heater.

I am looking at replacement and the cost, what factors can happen if the foam is not properly replace immediately

Thank you

Billy

99 Boxter 2.5L. sometimes stalls at idle, code P102 appears.  Have throughly cleaned Idle Control Sensor, MAS, Throttle, air intake seems OK, new filter.

Crispy AOS lower vent hose snapped at the transition from corrugated to smooth pipe. It looks like the whole intake system requires removing to remove and install this hose! Is there a better (easier) way?

I recently returned from a 2000+ mile trip to PA and back during which the car ran flawlessly. On my return, I took it out for a brief time to do a little driving instruction with my grandson which we enjoyed together. He is a very careful learner and did nothing while driving that would have been any different than my own driving habits. I took over driving after about 20 minutes to return home and the car suddenly lost power and would only barely idle with occasional spurts of smooth rev spikes. I cannot find any obvious intake vac leaks. I had repaced the AOS before leaving on the trip.

Boxster S has a loud lifter ticking noise on the driver's side when the engine is hot. It is quiet when cold.

Ok so I’m an idiot.  With that out of the way now for the excuses.  I pulled up to the fuel pump today and was distracted by a deep conversation with my wife as to what to have for dinner and that along with the fact that my Boxster looks identical to my Ford Ranger daily driver I filled the tank with regular gas.  The internet sites say it is ok just drive the tank out and next time don’t be an idiot.  Others say that is probably true but not necessarily.  Octane booster, drain the tank etc.?  Help!!!

I've heard that 2005 Boxster S's can either the single or double row IMS bearing.  Can I determine which one by looking at my VIN?

In ims video number 4, the caption says that 1995 through 1998 Boxters do not sure ffer from significant failure rates, however the gentleman speaking in the video says it is 1995 through mid-year 2000. Which is it?  Thank you.