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!
CATERA WITH 3.0L RIGHT REAR Y PIPE CONVERTER ASSEMBLY EXHAUST MANIFOLD WITH INTEGRATED CATALYTIC CONVERTER TEST GROUP 1GMXV03.0061 LEV LEV1 CALIFORNIA AND NEW YORK COMPLIANT EO D193-96 PER CARB REQUIREMENTS THE TEST GROUP SHOWN HERE MUST MATCH THE TE