... or a pneumatic driven pressure booster, to feed the CR injector, the user is able to fulfill the tasks, such ... as nozzle spray pattern and injector back leakage, to check the CR injector with either solenoid or piezo technology. ... injector driving signal.Short circuit protectionRich accessories, ready to test Bosch, Denso, Delphi and Siemens injectors Common Rail Solenoid & Piezo Injector Tester ...