Why do you need an injector tester?
The fuel injector is an indispensable part of the engine fuel supply. The fuel injector receives the injection pulse signal from the ECU and then precisely controls the amount of fuel injection. Fuel is injected into the engine’s cylinders, where it combines with air and is compressed, then ignited by spark plugs to produce power. Therefore, if an injector is faulty, the car’s engine may run with difficulty, or even not at all. That’s why it’s so important to test fuel flow. Therefore, if an injector is faulty, the car’s engine may run with difficulty, or even not at all. That’s why it’s so important to test fuel injectors. There are many reasons why injectors can fail. Although some may be beyond the expertise of most home mechanics, you can usually diagnose a faulty injector using a number of professional fuel injector testers.
A few ways to determine a bad fuel injector
1. The fuel injector can be determined by the ease of starting the engine cold and the color of the exhaust smoke after starting. Engine cold start difficulty, the exhaust smoke color after starting white smoke or black smoke, if the oil supply angle and cylinder pressure is normal, injectors and high-pressure oil pump may be bad.
2. To determine which specific fuel injector is bad, you can wait for the engine to start and maintain a stable speed. Then disconnect the oil supply of each cylinder one by one to see if the engine speed has changed: if the generator speed drops significantly after the cylinder is disconnected, it means that the injector of this cylinder is good; if the generator speed does not drop significantly after the cylinder is disconnected, and the engine has less white smoke or black smoke, it means that the injector of this cylinder is bad.
3. Can take out the injector, the injector nozzle carbon accumulation, very wet, is the injector poor working condition.
4. If the oil becomes thin, the oil has a diesel smell, many times also and injector failure related.
The best fuel injector tester
Using professional equipment to test car injectors is a better choice, the results of the machine will be more accurate. But what machine should be used to perform the test? Looking at the combination of cost and results, I think the AUTOOL CT400 is the best machine on the market. It can not only test standard injectors, but GDI is also tested by it, including compatible for Benz, BMW, AUDI, Porsche.
For many people, the CT400 has the features to meet all the basic needs. Because it is also a cleaner, using ultrasonic cleaning, it can achieve great injector cleaning results. It is equipped with a variety of injector accessories to meet different needs. In addition, AUTOOL CT400 can test and clean 6 injectors at the same time, with great efficiency. AUTOOL CT400 is definitely a worthy investment and can be used easily without being a professional.
To learn more about the autool ct400 and how to operate it, you can watch the following video.