Fuel Injector Tester Analyzer EM276 with 4 Pluse Modes

This tester can diagnose injector problems, you can use it on each injectorindividually to test stuck, leaking or burnt-out.It used 12V vehicle battery as power supply.It has 4 pulse modes and in the continuous working mode ( mode 4 ), it can helpyou identify the injector good or not when you switch off the engine.The lock mode can ensure the testing condition is same.It can work with any fuel pressure tester together.Operation Instructions:Turn off the vehicle‘s engine Connect Black / Red Clip to the Negative / Positive terminal of battery  Connect pulse output terminal to the fuel injectorPress the "MODE SET" key to select the desired pulse modePress the "PULSE" key, the tester will output pulse to the injector, and then the pulse signal indicator will light as indication  Explanations for 4 modes:Mode 1:  the tester outputs 1 pulse, whose pulse width is about 250msMode 2:  the tester outputs 50 pulse, every pulse's pulse width is about 7msMode 3:  the tester outputs 100 pulse, ever