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!
TERRAIN WITH 3.0L REAR UNDERBODY MOUNTED CONVERTER TEST GROUP CGMXT03.0157 LEV2 ULEV OR CGMXT03.0159 LEV2 ULEV CALIFORNIA OR NY APPROVED - CARB EXECUTIVE ORDER D191-148 PER CARB REQUIREMENTS THE TEST GROUP SHOWN HERE MUST MATCH TH