... performance of the engine with the ECD-V4 has been improved (by atomizing the fuel into finer particles and optimizing the rise rate of the injection pressure), and providing the injection volume and injection ... been adopted 1-4 Injection Pump for ECD-V5 The ECD-V5 , which is based on the ECD-V3 , is a distribution type, electronically controlled fuel injection pump that offers higher injection performance ... injection pump As the fuel fills the injection pump, it lubricates and cools the moving parts in the injection pump After the fuel is pressurized, it is injected into the engine cylinder by the injection...