The MAGNETI MARELLI Lambda zonde, part number 466016355009, is a critical sensor for modern vehicle emissions control and engine management. Functioning as an oxygen sensor, it measures the amount of unburned oxygen in the exhaust gases. This data is then sent to the engine control unit (ECU), which uses it to adjust the air-fuel mixture for optimal combustion. A properly functioning Lambda sensor is vital for reducing harmful emissions and improving fuel economy. Replacing a faulty Lambda sensor can resolve issues such as poor fuel efficiency, rough idling, increased emissions, and illuminated check engine lights. This MAGNETI MARELLI sensor is engineered for reliable performance and durability, helping to restore your vehicle's performance and environmental compliance. Ensure your vehicle's engine is running at its peak efficiency and meeting emission standards by installing this high-quality Lambda zonde.