Diesel Injector Pop Tester Diesel Fuel Injector Pop Tester These Nozzle testers are used to adjust the injector nozzle opening pressure, nozzle seat tightness and to carry out leakage tests & spray pattern atomization. Pressure range 0-600 Bar 0-8000 PSI. MSRP: Was: Now: $125.00 Add to Cart The item has been added