OTC 6550PRO Professional Master Fuel Injection Service Kit Does not Include the 1997-2008 fuel injection service application manual Does not Include the 1997-2008 fuel injection service application manual Perform fuel pressure testing diagnose weak fuel pumps or restricted filters test for fuel flow and perform leak-down tests 0-100 pounds per square inch fuel pressure Gauge 47 OTC fuel injection system adapters each with a quick connect Schrader Valve Replacement seal kit