丰田卡罗拉花冠氧传感器 89465-19535 原厂替换件

When your Toyota Corolla or Crown shows engine warning light, noticeably higher fuel consumption, unstable idle, or weak acceleration, it usually indicates the oxygen sensor is aging or failed and cannot accurately monitor exhaust oxygen content. In normal operation, this sensor provides the ECU with an air–fuel ratio signal to help engines achieve optimal combustion, reducing emissions and saving fuel. This product is an OEM replacement, OEM number 89465-19535, for Toyota Corolla (2007–2013) and Crown (2004–2012) among others. During installation, ensure sensor threads are clean, use a dedicated wrench to tighten to the specified torque, avoid thread damage from over-tightening, and ensure harness routing away from high-temperature exhaust areas.