P0430 Bank2 problem on Honda Pilot 2011(Bank1 replaced)

Question

Hi I have replaced   the bank 1 Catalyst Converter on my 2011 Honda Pilot LX about 2 months ago. Now I have the check engine and P0430 Bank 2 code. What could cause this and how can it be fixed. Thank You

Answer 1

P0420 Catalyst below threshold Bank 1

P0430 Catalyst below threshold Bank 2

Use this TSB that applies to your vehicle, the most common cause , this is only a small version of the TSB

14-002

February 13, 2014

Applies To:
See VEHICLES AFFECTED

MIL is on with P0420 or P0430
(Supersedes, MIL Is On With DTC P0420 or P0430, dated January 18, 2014, to revise the information marked by the black bars and asterisks)

REVISION SUMMARY

*Under VEHICLES AFFECTED, vehicle years were changed.*

SYMPTOM

MIL is on with DTC P0420 and/or DTC P0430 (catalyst system efficiency below threshold) with a possible DTC P2243 and/or DTC P2247 (A/F sensor 1 circuit high voltage).

POSSIBLE CAUSE

One or both A/F Sensor 1 (Air Fuel Ratio) caps may have fallen off and bored a hole through the affected WU-TWC (Warm Up Three Way Catalyst).