14221-ZZ3-003 Tdc Pulser Plate - Overview. The 14221-ZZ3-003 TDC Pulser Plate is a vital component in Honda marine engine systems. It supports the ignition and fuel management system by providing precise rotational position data of the crankshaft. This data is critical for the engine control module to accurately time ignition and fuel injection, ensuring smooth engine operation and optimal performance. Manufactured to meet exact factory specifications, this part integrates seamlessly with existi