Common Rail Pump and Injector Tester: BOSCH CP1,CP2,CP3,DELPHI,SIEMENS,DENSO HP2 ... etc.. The function of the common rail pump and injector tester for CR high pressure pumps is to provide ... the desired signal to drive the solenoid in the pump ... injectors in one time. Design Features: common rail tester * Modulated driving signal to ensure the safety of ...