P0432
Main Catalyst Efficiency Below Threshold Bank 2
Generic code
Auxiliary Emissions Control
Medium severity
Moderate repair
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What P0432 means
- The fault code P0432 indicates that the main catalytic converter for Bank 2 is not functioning as efficiently as it should be, resulting in an emissions control issue.
Possible symptoms
- Illuminated check engine light
- Reduced engine power or acceleration
- Increased exhaust emissions
- Strong odor coming from the exhaust
Possible causes
- Failed catalytic converter
- Malfunctioning oxygen sensor
- Fuel mixture too rich or too lean
- Ignition misfire
- Exhaust leaks
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
- Replace the catalytic converter
- Replace the oxygen sensor
- Repair any fuel system issues that may cause a lean or rich condition
- Repair any ignition misfire issues
- Repair any exhaust leaks
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P0432 on OBD DashX
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