The Bosch 0280218407 Mass Air Flow (MAF) Sensor is a precision-engineered original equipment quality sensor designed to measure the actual air mass entering the engine intake system. This sensor transmits critical air flow data to the engine control unit (ECU) to optimize fuel injection, combustion efficiency, and overall engine performance. Key Features: Hot-film sensing technology for accurate air mass measurement Original equipment (OE) quality construction and calibration Helps maintain proper air-fuel mixture for efficient combustion Supports reduced emissions and improved fuel economy Direct replacement for worn or failed factory mass air flow sensor Built to Bosch OE specifications for reliable, long-lasting performance Mass air flow sensors are critical components in modern engine management systems. A properly functioning MAF sensor ensures the ECU receives accurate intake air readings, preventing issues such as rough idle, poor fuel economy, increased emissions, and compromised drivability. The Bosch 0280218407 utilizes proven hot-film sensor technology that measures air flow by monitoring temperature changes as intake air passes over a heated sensing element. This data is processed and transmitted digitally to the engine control module for precise fuel delivery calculations.