34750-ZVP-023 Ecu Assembly - Overview. The 34750-ZVP-023 ECU Assembly is a critical component of Honda marine engine systems. This Electric Control Unit (ECU) manages and optimizes engine performance by processing sensor data and sending precise commands to various engine components. As an integral part of the Honda Active Marine System, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. OEM Genuine Honda part designed to meet fact