The oxygen sensor works similarly to a battery, with the element zirconia in the sensor acting like an electrolyte. The basic automobile oxygen sensor is the key feedback sensor in the EFI engine control system, and is the key part to control automobile exhaust emissions, reduce automobile environmental pollution and improve the fuel combustion quality of automobile engine. The oxygen sensor is installed on the engine exhaust pipe.
When installing automotive oxygen sensors, the following points need to be noted:
1. Distinguish the position: the oxygen sensor is installed in front of the three-way catalytic converter, and the post-oxygen sensor is installed behind the three-way catalytic converter.
2. Tool preparation: Use professional tools to install the oxygen sensor, especially considering that the thread size of the oxygen sensor is generally M18, and the recommended torque is 45-55Nm.
3. High temperature protection: The working temperature of the oxygen sensor can reach 800 ° C. Therefore, pay attention to preventing burns when removing or installing the oxygen sensor and ensure that the exhaust pipe is completely cooled before operating it.
