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!
ECLIPSE WITH 2.4L SOHC CONVERTER ASSEMBLY TEST GROUP 4DSXV02.4G2G LEV LEV1 OR 4DSXV02.4GBB LEV LEV1 CA OR NY APPROVED - CARB EXECUTIVE ORDER D193-106 PER CARB REQUIREMENTS THE TEST GROUP SHOWN HERE MUST MATCH THE VEHICLE.