30757556 Lambda Sensor OEM 4 CYL V40 V70 XC60 Auto Rear Oxygen Sensor

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Detailed Description of Lambda Sensor:

The lambda sensor operates based on the principle of the oxygen concentration in the exhaust gases affecting its voltage output. There are two main types of lambda sensors:

Narrowband Lambda Sensor: This type of sensor is the most common and has been used in vehicles for many years. It provides a signal to the ECU that indicates whether the air-fuel mixture in the engine is running rich (excess fuel) or lean (excess air). The output voltage of a narrowband lambda sensor switches rapidly between high and low values, providing a binary "rich/lean" indication.

Wideband Lambda Sensor: Wideband lambda sensors are more advanced and provide a more precise measurement of the oxygen concentration in the exhaust gases. They can accurately determine the air-fuel ratio and provide continuous voltage output proportional to the oxygen concentration. This allows the ECU to make more precise adjustments to optimize the air-fuel mixture for better fuel efficiency and emissions control.

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