... BF1178 used to test common rail injectors and pumps, like bosch, simens, denso, delphi etc >>>>>> ... BOSCH, DENSO, DELPHI, SIEMENS brands common rail Injectors and pumps.etc2. Detect the performance of common rail pump fuel metering valve3. Detect the ... following functions: it can test HP0 pump, PIEZO injectors, and one time can test four injectors for common rail injectors. Common Rail Test Bench