... CRI-3000 can test nozzle spray pattern and injector back leakage, to check the CR injector with either solenoid or piezo technol CRI-3000 ... pump, 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.Design ...