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â Mode â1â: Single Pulse Low Power Mode: when the PULSE key is pressed, the injector tester will send out a pulse with a pulse width of about 255 milliseconds.
â Mode â2â: Short Pulse Low Power Mode: the injector tester will send out 50 pulses with a pulse width of about 7 milliseconds.
â Mode â3â: Long Pulse Low Power Mode: the injector cleaner tester will send out 100 pulses, and the pulse width is about 3.5 milliseconds.
â Mode â4â: Continuous Pulse Low Power Mode: the injector tester will output pulses continuously, the pulse rate is about 50 pulses every 1450 milliseconds, and the pulse width is about 7 milliseconds.
â Mode â5â: Single Pulse High Power Mode: the injector tester will send out a pulse with a pulse width of about 255 milliseconds.
â Mode â6â: Short Pulse High Power Mode: the injector tester will send out 50 pulses with a pulse width of about 7 milliseconds.
â Mode â7â: Long Pulse High Power Mode: the injector cleaner tester will send out 100 pulses, and the pulse width is about 3.5 milliseconds.
â Mode â8â: Continuous Pulse High Power Mode: the injector tester will output pulses continuously, the pulse rate is about 50 pulses every 1450 milliseconds, and the pulse width is about 7 milliseconds.
Note: During the pulse output period, the MODE SET button is invalid, and the working mode can only be selected by pressing the PULSE button again to terminate the output.

Note
1. Before using this fuel injector tester, the engine of the car must be turned off.
2. Do not smoke or ignite near the car.
3. Do not splash the fuel of the car on the hot engine parts.
4. Only use this injector tester in a ventilated place. Do not inhale exhaust fumes from vehicles and vapours.
5. Do not get close to any rotating (or moving) parts of the car, and do not touch any heat-generating parts of the car.
6. Do not short-circuit the positive and negative poles of the car battery.
7. Do not touch any car parts with dangerous voltage.
8. Always follow the warnings, cautions and related maintenance instructions in the vehicle maintenance manual.
9. Wear qualified goggles.
10. After the test is complete, all disconnected vehicle connections should be properly restored.
