Vanishing MCSF warning

[AndrewK]

Twice in the past week, my manual 147 TS has displayed the dreaded MCSF warning on start up from cold. I turn the engine off, then back on and the MCSF is gone and the car runs without a hitch. What is common to both occasions is that this happened after the car was taken on a longish trip, parked and then not started until the following (and very cold) morning. Any ideas as to what it might be?

[wankski]

maybe dying lambda sensors.... but just speculation until the codes get read.

[AndrewK]

Thanks wankski, I'll keep an eye on it until I get it checked out.