I just got the call from the Service Manager. Just as suspected, a clogged cat, along with a bad O2 sensor were the cause of my problems. I don't get why Wood Mazda in Santa Rosa couldn't have just fixed it for me instead of blatantly blaming on what was obviously not the cause, and then having the ***** to tell me that it was fixed when absolutely nothing was done except turning the CEL off. Grrrr...

Jon