Oil Combustion Spraying Pressure Tester Meter Fuel Pressure-Injection Gauge FEATURES: Tester checks the amount of leakage in an engine cylinder & helps detemine the source. *Best used when comparing asuspect cylinder to a known good cylinder on same engine *Ideal For testing trucks and late model cars where clearance is minimal. Fuel injection pump pressure gauge Test gasoline fuel pump pressure on most fuel injection equipped vehicle (Except For CIS-Jetronic, Bosch and For GM throttle body systems) Gauge calibrated from 0 - 140 PSI (0-10 bar) Indicates if fuel pump is defective or inconsistent in pressure flow Includes assorted hoses, fittings and clamps to work on most vehicles Blow molded case included. NO INSTRUCTION OR MANUAL COME WITH THIS KIT.