Do Oxygen Sensors Need Regular Replacement?

[TeaganMarie]

Oxygen sensors do not require regular replacement; they only need to be replaced if they malfunction. Under normal conditions, an oxygen sensor can last up to 100,000 kilometers without issues. Normal conditions refer to the vehicle being regularly maintained by the owner and not subjected to aggressive driving behaviors. More information about oxygen sensors is as follows: 1. There are typically two oxygen sensors: a front oxygen sensor and a rear oxygen sensor. The front oxygen sensor is located before the catalytic converter and is used to adjust the air-fuel mixture concentration. The rear oxygen sensor is located after the catalytic converter and is used to monitor the working condition of the catalytic converter. 2. In engines equipped with catalytic converters to reduce exhaust emissions, the oxygen sensor is an essential component.