Engine Clean Solutions' D-2000 diesel fuel system service tool helps eliminate a variety of engine symptoms, including hard start, rough idle, engine smoke, low power and engine trouble codes. It works using engine specific adapters and introducing a mixture cleaning solution and diesel fuel into the fuel system. This includes the fuel pump, injectors, and combustion chamber surfaces. The cleaning service loosens carbon gum and varnishes, and other contaminants. It also measures both fuel pressure and fuel inlet temperature to assist in diesel driveability diagnostics.