My 06 V has 40K miles on it and the cat code is present when check engine lite comes on. I bought the car 2 months ago so I dont have the detailed history to know if a history of misfires or something might have poisoned the cat prematurely. I drove the car 1500 miles after getting it before the CE lite came on. After Reseting it, it now comes on in a few 10's of miles. Just had it at a dealer. They said O2's are ok, no exhaust or intake leaks found, they say replace the cat. So that is why I am resurrecting this older thread. I see a lot of youtube guys saying many things can be causing this, so dont use the "big hammer" right away (ie: replace cat). Even though the car is 14 yrs old its hard for me to believe a cat can be toast already, seems a leak is more likely. But the dealer says not, so maybe I am just in denial. Any experience shared on this is welcome.