Nox Sensor Oxygen 4K0907807AJ 4K0907807E 4K0 907 807 AJ For A6 For C8 For A7 For Sportback Nitrogen Oxide Sensor NOx Sensors(NOx Sensor)

4K0907807AJ 4K0907807E 4K0 907 807 AJ For A6 For C8 For A7 For Sportback Nitrogen Oxide Sensor NOx Sensors， Most engines are equipped with two NOx sensors: an upstream sensor and a downstream sensor. NOx sensors monitor NOx emissions in diesel vehicles to ensure compliance with emissions regulations. Common causes of failure include carbon deposits on the sensor, water ingress, and/or cable damage, all of which can cause the check engine light to illuminate. Installing an upstream NOx sensor is an ideal solution to this problem. Our NOx sensors are designed to original equipment standards, utilizing durable materials and superior craftsmanship. This keeps your engine in good working condition and enhances your driving experience. NOx sensors are made of stable and reliable materials, offering low intake resistance, fast response, and accurate measurement. The function of a nitrogen oxide sensor is to measure the concentration of nitrogen oxides (NOx) and feed the data back to the engine control unit (ECU) to adjust valve timing and fuel-air mixture ratio. Traditional internal combustion engines without this technology can only use the same fuel-air mixture ratio under all operating conditions, leading to decreased engine performance and efficiency. NOx sensors play a crucial role in routine vehicle inspections, monitoring, and emissions compliance checks. If the oxygen sensor malfunctions, the ECU will be unable to obtain information about the oxygen concentration in the exhaust pipe, resulting in problems such as unstable idling and engine surging. Therefore, the oxygen sensor must be repaired or replaced promptly.