A faulty Oxygen Sensor is a primary reason for Failure of a Catalytic Converter. Car Manufacturers Recommend Replacement of O2 Sensors at 60,000 miles. If you are purchasing a New Catalytic Converter be sure the Oxygen Sensors are Checked and Operating Correctly!
GALANT WITH 2.4L EXHAUST MANIFOLD WITH INTEGRATED CATALYTIC CONVERTER CONTAINS TWO CONVERTERS TEST GROUP ADSXV02.4GRB LEV2 ULEV CA OR NY APPROVED - CARB COMPLIANT D798-9 PER CARB REQUIREMENTS THE TEST GROUP SHOWN HERE MUST MATCH THE TEST GROUP OF YOUR VEHICLE.