30580-ZV4-023 Ign Cont Module - Overview. The 30580-ZV4-023 Ign Cont Module is a crucial ignition control module supporting Honda marine engine systems. This genuine OEM component plays a vital role in managing spark timing for smooth engine operation and optimal performance. Engineered to meet exact factory specifications, the module ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Precise ignition control module essential for timi