Mulitiple error codes? Vantage 4.3

[stevo96]

Hi guys
I have an issue. Car is 06 4.3 vantage. I have the following codes (car drives fine)
P0153 - 02 sensor bank 2 sensor 1
P0430 - cat bank 2 below threshold
P0410 - secondary air inj system
P0491 - secondary air inj bank 1 below threshold
P0492 - secondary air inj bank 2 below threshold.

I’m concerned about the p0430 as I’ve heard the cat can breakdown and go into the engine. Thoughts on what I should do first?

[Krhuangbin]

I had P0430 and another a few months ago (can’t remember which but something to do with cats) on my 06 4.3.

Think the V8 is not prone to broken cat ingestion as it’s quite far downstream, as opposed to right after the manifolds on the V12s!!!

Cleared the codes and they haven’t come back after 1.5k miles, and recent service/inspection by AM Dealer confirmed all was well

They like to cry wolf!

[ridds]

A 4.3 can't ingest its Cats.

Replace your LH Bank Primary Lambda sensor and clear the error codes. That may well fix it.

If not, you may well have a Sec Air pump or valve issue as well.