CEL after 6 years

[Anker]

I very strongly recommend getting a reader that can read the Porsche-specific codes. There are a lot of things that can go wrong that won't be revealed with a generic OBDII reader, some of them can lead to catastrophic failure, like camshaft timing.

Obviously the best choice is Durametric, but there are readers in the $100 to $300 range that will read vendor-specific codes. I got one of those because I have both a Boxster and a Mercedes CLK 350 convertible and with this I can get away with one reader instead of two.

When you service the car it takes little effort to read all the codes and get a feel for the condition of the critical systems.