Actron CP7838 Professional Fuel Pressure Tester;

This fuel pressure tester diagnoses drivability problems caused by poor fuel pressure. It is designed for fuel injected systems. It features a relief button and 6-ft hose to safely dispose of gasoline without disconnecting the gauge. It also works on the throttle body injection with a threaded connection at fuel filter or throttle body. It is 2½" gauge with 0-100 psi/0-700 kPa scales for accurate measurements. The gauge resolution is not optimal for carburetor applications and it does not include any carburetor adapters. To test fuel pressure on carbureted engines, Actron CP7803 Vacuum and Fuel Pressure Tester Kit can be used.