Just reposting in case the post gets locked. Like I said.. P0420. Didn't come with any other code number.. but this is the "official" discription.
Catalyst system Efficiency Below Threshold Malfunctioning or defective catalyst system

Now.. if my cat were busted.. wouldn't I be able to tell?


Aaaand.. could this have ANYthing to do with the fact I just got my ignition coil replaced?

Janna