What to Do When the Three-Way Catalytic Converter Warning Light Comes On?

1 Answers
IanFitz
07/29/25 4:13pm
Decode the vehicle's onboard computer. If the light remains on after decoding, it indicates that the issue is not with the computer. Visit an auto repair shop or a 4S dealership and have a professional repair or replace the three-way catalytic converter.
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