Common rail test bench BF1178 used to test common rail injectors and pumps, like bosch, simens, denso, delphi ... system2. The Oil quantity, rail pressure, pulse width, rotate speed, temperature will be displayed by 10.4 inch True color display screens 3 ... following functions: it can test HP0 pump, PIEZO injectors, and one time can test four injectors for common rail injectors. Common Rail Test Bench