Catalyst Location
TEXT IN ILLUSTRATION
| *A | w/ Exhaust Heat Recirculation System | *B | w/o Exhaust Heat Recirculation System |
| *1 | Air Fuel Ratio Sensor (Sensor 1) | *2 | Exhaust Manifold Sub-assembly |
| *3 | Front Exhaust Pipe Assembly | *4 | Heated Oxygen Sensor (Sensor 2) |
| *5 | Tail Exhaust Pipe Assembly | *6 | TWC: Front Catalyst |
| *7 | TWC: Rear Catalyst | - | - |
NOTE:
When replacing the front exhaust pipe assembly in order to replace the three-way catalytic converter, it is not necessary to replace the heated oxygen sensor.