2008 Volvo V50 2.4L with engine code P0420, what is the meaning?

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Reynaldo · Answer 1 · 2018-06-15T06:43:59+0000

P0420 Catalytic convertor effieciency bank 1

This is a failed catalytic convertor, You need to inspect the engine condition and repair the cause,

OBDIITech · Answer 2 · 2021-07-21T17:02:11+0000

P0420 VOLVO - Catalyst System Efficiency Below Threshold Bank 1

Read more: https://www.autocodes.com/p0420_volvo.html