雷克萨斯/丰田氧传感器 234-4206 原厂规格替换

When your Lexus or Toyota shows rough idle, noticeably higher fuel consumption, engine warning light, and acceleration hesitation or exhaust odor, the oxygen sensor has aged and failed to monitor exhaust oxygen accurately. It provides real-time feedback of the air-fuel ratio to the ECU to maintain optimal combustion and reduce emissions while improving throttle response. This is an OEM-spec replacement with OEM 234-4206; also compatible with 234-4207 and 234-4208; fits many Lexus ES, RX and Toyota Camry, Highlander models. Install with engine cold; avoid burns; use a dedicated socket to remove the old sensor and prevent thread damage; clear fault codes and road-test to confirm signal after installation.