2004 Corolla code P0420

[cole47]

I'm hoping to get some info about my 2004 Corolla with an engine code P0420.
The car is running better than it ever did, no sulfer smell, so I don't get why it's giving a code.

[mral1515]

This is a catalytic converter code and it more than likely needs to be replaced. If your car has less than 80k on it, it is still under warranty. The converters are covered for 8years or 80,000 miles. I work at Don Davis Toyota in Arlington if you need some help.