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!
FRONTIER WITH 3.3L FRONT MANIFOLD CONVERTER DRIVERS SIDE BANK 2 TEST GROUP 3NSXT03.3C6A LEV LEV1 CALIFORNIA AND NEW YORK COMPLIANT EO D798-7 PER CARB REQUIREMENTS THE TEST GROUP SHOWN HERE MUST MATCH THE TEST GROUP OF YOUR VEHICLE. CALL FOR ASSISTANCE IF NEEDED (713)722-9212