P0433

2017-10-10

Description:

  • The fault code P0433 is triggered when there is an issue with the heated catalyst system efficiency

Possible Symptoms:

  • Check Engine Light (CEL) illuminated

  • Decreased engine performance or power

  • Poor fuel efficiency

  • Strong smell of rotten eggs (sulfur) from the exhaust

Possible Causes:

  • Faulty catalytic converter in bank 2

  • Oxygen (O2) sensor malfunction in bank 2

  • Exhaust leak or damaged exhaust system components in bank 2

  • Engine misfire or running rich condition in bank 2

  • Faulty engine control module (ECM)

Related Parts:

  • Catalytic Converter: A catalytic converter is a device that converts toxic gases and pollutants to less harmful pollutants. Problems lead to harmful emissions out of limit, rotten egg smell from exhaust & reduced speed

Possible Solutions:

  • Inspect and replace the faulty catalytic converter in bank 2, if necessary

  • Test and replace the malfunctioning oxygen (O2) sensor in bank 2, if necessary

  • Inspect and repair any exhaust leaks or damaged exhaust system components in bank 2

  • Address and fix any engine misfire or running rich condition in bank 2

  • Test and replace the engine control module (ECM) if it is determined to be faulty

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