fault code

[edgeyt5]

hi all
got check engine light on diagnostic code p0422 any help says something to do with cat bank 1
roy

[A.J]

po422 (threewat cat converter efficiency)
possible causes are missfires/ leak in intake system/ leak in exhaust system/ faultyfuel pressure/defective cat.
you should begin with leaks first

[edgeyt5]

hi thanks for the reply
i do have a leak at the flange after cat to catback this is gettin fixed no other leaks that i no off