[SpeedracerIndy]

In todays computer controlled car age I think most people expect an instant response as to the cause of their engines malfunction. With the CIS it's like you said, trial and error. That gets frustrating and expensive VERY quickly. I don't mind a the trial and error as long as the Porsche isn't my daily driver. I do mind the expense though, and that causes me to ignore some problems that creep up now and then that don't need immediate attention. Some of those CIS components are expensive! That being said, my car has been and is running pretty well (knock on wood!).

Also there are a few that I have seen who have deleted many of the unnecessary CIS components, such as the decel valve, to make the system more simple and reliable. As long as you don't have to worry about emmision inspections, that sounds like a good idea to me.

Edit: oh yea, I'd hardly call these traits of the SC (and earlier CIS cars) defects! The SC is still one of the best (if not the best) 911's you can get for the money.