[paulv]

Originally Posted by root_werks

Derrrr, it's P0430, not 403. Just call me dyslex,,,,,dislexs,,,,,dys,,,,,oh never mind.

Not much research to do here other than replace the cat. Time to shop and probably just get both. I'm sure the left isn't far behind.

For a P0430:

Possible fault cause
♦ Oxygen sensor ahead of and after TWC exchanged
♦ Valve lift fault
♦ Aged oxygen sensor after TWC
♦ TWC faulty

Regards,
paul...