30400-ZW8-003 Ign Cont Module - Overview. The 30400-ZW8-003 Ign Cont Module is a critical component in Honda marine engine systems. It supports the ignition system by regulating spark timing to ensure optimal engine performance and reliability. This ignition control module is essential for the seamless operation of Honda outboard engines, providing precise ignition timing for smooth running and efficient power delivery. Engineered to meet strict factory specifications, the module guarantees comp