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Home >> Lexus >> 2024 >> TX 350 Base, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 103 (Engine Control System - Diagnostic Codes (4 Of 7)) >> SFI SYSTEM (for 1Motor-HEV Model) >> DTC P0420-00: Catalyst System Efficiency Below Threshold Bank 1 [09/2023 - ] >> Catalyst Location

Catalyst Location

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*1 Air Fuel Ratio Sensor (Sensor 1) *2 Air Fuel Ratio Sensor (Sensor 2)
*3 Converter with Catalyst Assembly *4 Front and Center Exhaust Pipe Assembly
*5 Tail Exhaust Pipe Assembly *6 TWC: Front Catalyst
*7 TWC: Rear Catalyst - -
NOTE:

When replacing the converter with catalyst assembly (*3) in order to replace the three-way catalytic converter, it is not necessary to replace the air fuel ratio sensor (sensor 1) (*1) and the air fuel ratio sensor (sensor 2) (*2).