Need IDEAS: 2001 Dodge Dakota V6 (92,000 miles) - My MIL light is on, has been on. Took truck to have code read. Indicated 420 and 432 catalyst problem. I was told it may also be the MAP sensor. Checked MAP sensor, it is functioning properly. Where do I go next? OX sensors? Catalytic converter? Any idea of something else? Thanks!

 

check ur 02's but most likley ur cat (s) are clogged check ur pre and post cat exhaust temps witha lazer thermo should be lower post cat if not ya have a problem..