Hello,
Code P0430 means that the oxygen sensor downstream of the catalytic converter on bank 2 is detecting that the converter is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.
Reasons for this code to set.
The catalytic converter is no longer functioning properly.
An oxygen sensor is not reading (functioning) properly. This could be a bad sensor or a bad wiring connection.
There is an exhaust leak.
Bad spark plugs, poor running(tune) or a misfire can affect the converter's efficiency.
Once a catalytic converter has gone bad it will need to be replaced.
See catalytic converter information.
https://www.2carpros.com/articles/how-to-test-a-catalytic-converter
Hope this helps.
Cheers, Boris
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Friday, April 29th, 2022 AT 6:53 AM