Imo000

Was this ever resolved?

Ron_H

No, it was not. The car has been registered non-operative for the past year and a half and is only driven long enough to get it warm once a month or so. During those times it is not driven on public roads so "warm" is relative to "mild driving".
Before the car is returned to regular use, this issue as well as a few other serious issues will be investigated thoroughly. There are just too many more serious issues in my life currently to deal with the 928, and too many issues with the car to continue using it without resolving these properly.