... Systems in ECD-V Series 1-1 ECD-V Series 1-2 Injection Pump for ECD-V3 10SERVICE TECH Vol.465 0 3-4 The ECD-V4 , which is based on the ECD-V3 , is an electronically controlled distribution type pump that ... cylinder-by-cylinder basis. Depending on the type of final injection volumecorrection and the solenoid spill valve that are used,three types of ECD-V3 are available: ECD-V3 , ECD-V3 (ROM), and ECD-V3 ... injection performance and functionality. It provides pilot injection to reduce the combustion noise of theengine. 1-3 Injection Pump for ECD-V4 1-4 Injection Pump for ECD-V5 SERVICE TECH Vol.465 0 3-4 11...