4 Pulse Modes Fuel Injector Tester 12V Car Injector Cleaner Controller for Auto Diagnostic Features： 1、Comprehensive Diagnosis: The automobile injector tester is an essential tool for diagnosing fuel injector problems, allowing you to test each injector individually for issues such as sticking, leaking, or burnout conditions. 2、4 Pulse Modes: Equipped with 4 pulse modes, this fuel injector tester enables users to select the appropriate mode based on specific testing needs, including a continuous mode (mode 4) that helps to reliably assess whether the injectors are functioning properly. 3、Consistency in Testing: Featuring a mode lock function, our injector tester ensures consistent results during testing, providing accurate diagnosis of injector performance with every use. 4、Compatible Design: Designed exclusively for gasoline engines (not suitable for diesel), this tester can be easily utilized in conjunction with any fuel pressure tester, making it a versatile addition to your automotive toolkit. 5、Durable and Convenient: The automobile injector tester's power cord is resistant to extreme temperatures and offers ample length for easy connectivity, ensuring convenience and reliability during your testing sessions. Specification： Item Name: Fuel Injector Tester Main Material: ABS Power Supply: 12V vehicle battery (Not Included) Mode: Single / Short / Long/ Continuous modes Fit For: Gasoline cars Product Color: Orange Product Size: 17.5*12.5*5.5cm/6.89*4.92*2.17inch Operating Instructions: 1. Turn off the car's engine. 2. Remove the wire plug of the vehicle injector to be tested, and then connect the two pulse output terminals of the fuel injector tester to the vehicle injector. 3. Then connect the red clip of the injector tester to the positive terminal of the 12V car battery, and connect the black clip of the injector tester to the negative terminal of the car battery. 4. Insert the DC plug into the port of the fuel injector tester. 5. Press MODE SET key to select the desired pulse signal output mode, and the screen will display the currently selected mode. Package List： 1 * Automobile Injector Tester 1 * English Manual