Easy to Operate the Fuel Injector Tester
1. Turn off the vehicle engine.
2. Unplug the injector wires of the vehicle to be tested, and then connect a pair or two pairs of the pulse output terminals to the vehicle injectors. (The red pulse output terminal is connected to the positive terminal of the injector and the black pulse output terminal is connected to the negative terminal of the injector. )
3. Then connect the red clip of the injector tester to the positive terminal of the 12V car battery and the black clip of the injector tester to the negative terminal of the battery.
4. Insert the DC plug into the power input port of the injector tester.
5. Press the MODE SET key to switch the desired pulse signal output modes, and the screen will display the currently selected mode.
6. After selecting the desired pulse signal output mode, press the "PULSE" key, the tester will output a pulse signal to the injector of the car to be tested, and the signal indicator will light up when the pulse signal is output.
7. If you need to repeat the test in the same mode, you can press the "PULSE" button again.
The MODE SET button is used to switch modes, but during pulsing it will be locked and you need to press the PULSE button again to terminate the pulsing output, then the MODE SET button is unlocked.