fits e.g. VW POLO (9N_) (please check exact vehicle application) HELLA intake manifold pressure sensors measure absolute pressure after the throttle valve by comparing ambient and system pressures, providing the ECU with accurate data to calculate air mass. Can help to reduce low fuel consumption, improved engine response, and reduced emissions through efficient mixture formation. Built to endure harsh conditions-resistant to vibration, heat, and dirt for long-lasting, precise performance. Developed to OEM standards for accurate readings and seamless integration in modern engine management systems. Check OEM number to ensure correct fitment for your vehicle.