Toyota/Lexus Universal Oxygen Sensor 89465-33180, Replaces 234-4622, Precise Air-Fuel Ratio

Toyota/Lexus universal oxygen sensor (89465-33180/234-4622) monitors air-fuel ratio to optimize combustion efficiency. Compatible with many Toyota and Lexus models; OEM numbers include 234-4622, 89465-33180, etc. Installation difficulty: medium; common faults are signal latency or carbon buildup. Disconnect battery before replacement and inspect wiring harness.