Use this Professional Fuel Pressure Tester Kit to diagnose driveability problems caused by poor fuel pressure. Measure the available fuel pressure with engine on or off. Tester works on: All makes and models with schrader valve test port on fuel rail Asian, European and domestic makes with "banjo bolt" connection (most popular, 12mm x 1.25 banjo included, other bolts available from Actron All makes and models with detachable rubber hose connection at fuel rail, fuel line or fuel filter GM TBI with threaded connection at fuel filter or throttle body Features: 40-inch gauge hose for ease of reaching any test point 2-1/2" gauge with 0-100 psi/0-700 kPa scales for accurate measurements Pressure relief button and 6-ft hose for safely disposing of gasoline and repeating tests without disconnecting gauge Gauge boot to protect gauge and vehicle finish Adapters to fit majority of domestic and import applications Handy pouch for storing gauge and adapters Manual with step-by-step test procedures