ENGINE – EMISSION CONTROL SYSTEMS (2JZ–GE) THREE–WAY CATALYTIC CONVERTER (TWC) SYSTEM EXHAUST PIPE ASSEMBLY INSPECTION 1. CHECK CONNECTIONS FOR LOOSENSESS OR DAMAGE 2. CHECK CLAMPS FOR WEAKNESS, CRACKS OR DAMAGE TWC INSPECTION CHECK FOR DENTS OR DAMAGE If any part of the protector is damaged or dented to the extent that it contacts the TWC, repair or replace it. HEAT INSULATOR INSPECTION 1. CHECK HEAT INSULATOR FOR DAMAGE 2. CHECK FOR ADEQUATE CLEARANCE BETWEEN CATALYTIC CONVERTER AND HEAT INSULATOR