30400-ZW9-003 Ign Cont Module - Overview. The 30400-ZW9-003 Ign Cont Module is a critical ignition control module designed for Honda marine engine systems. This module regulates and delivers precise spark timing essential for optimal engine performance and reliability. As a key component of the ignition system, it supports ignition control functions to maintain engine efficiency. Engineered to meet strict factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Authentic OEM Honda ignition control module (CDI) designed specifically for marine applications.. Regulates spark timing for improved engine performance and smooth operation.. Constructed to exact factory dimensions and tolerances for a perfect fit.. Ensures reliable ignition control for consistent marine engine functionality.. Integrates seamlessly with original Honda engine harnesses and components.. Durable design engineered to withstand marine