Catalytic Converters are essential Car Exhaust System Components that reduce the amount of toxic gasses exiting the exhaust tips. They do this with chemical reactions where spent gasses are exposed to chemicals and precious metals. Connected to the converter is the Oxygen Sensor that measures unburnt oxygen in the exhaust and helps adjust the air and fuel mixture for higher efficiency and lower emissions. A flaw with either this sensor or the Air Injection System will have effects on your emissions.
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