The secondary air injection pump plays a crucial role in your vehicle's emissions control system. By injecting fresh air into the exhaust stream, it helps to burn off uncombusted fuel, reducing harmful emissions, particularly during cold starts. This TOPRAN pump is engineered for a precise fit and function, ensuring seamless integration with your vehicle's existing components. It is built with durable materials to withstand the demanding conditions within the engine bay, offering longevity and consistent operation. Proper functioning of the secondary air injection system is essential for passing emissions tests and maintaining optimal engine performance. A failing pump can lead to increased emissions, rough idling, and potentially trigger a check engine light.