2007 Cayman S with 78K:
I got a check engine light with the codes P2189 and P2187 (System too lean at idle bank 1 and 2)
The next day car started puffing out white smoke from the exhaust on startup, it's done it both times i've started it up in the last day. I'm not driving the car until I take it into the shop, but it was driving totally fine.
I just wanted to get an idea of what I might be dealing with before I take it in monday, possibly the head gasket?