DFIT Diesel Fuel Injector Tester

Why take the time to perform a beaker test if you don't have to? DFIT connects directly into the PCM Harness, eliminating time consuming engine disassembly and should be your first step in any Duramax fuel system diagnostics.

The menu driven test procedure takes minutes to perfrom; proving a complete analysis of the high pressure pump (regulator), cranking system, system return flow, fuel injectors electrically under load and flow per cylinder.