Check Engine Lite on

[FAT_DOG]

Check engine lite came on yesterday. Engine runs fine. Hooked up code reader and came up with codeP0420 (Catilist systemefficency below threshold bank 1). Any ideas where to start looking to fix this? Thanks.

 

[jimbo74]

sounds like a bad catalytic converter

 

[BradE.]

Yep, time for a new cat.