Fuel Injectors

Injection valves serve to supply fuel into the combustion chamber. They are situated in front of the intake pipe. Nowadays in diesel engines a Common-Rail injection system is used. In old car models with diesel engines injection is regulated by hydraulic systems. In the internal-combustion engines are used electromagnetic valves with electric control. Precise injection resolves all the problems if we speak about an optimal use of engine power.

If the injection valves malfunction, this affects combustion. In most cases the problem is that the fuel is irregularly sprayed. In the engine appears knocking and in this case it burns more unsprayed fuel. Other problems arise if the injection jet is installed incorrectly. If the injection valves are directed at the cylinder wall, oil firm burns out and so-called “rusty stains” appear. Moreover, this can cause overheating that leads to piston burning-out.

If there are problems with combustion, the driver hears strange noises in the engine. This is the reason to check the engine and fuel injection valves particularly. In old cars it is possible to check them without any assistance. Modern cars have a lot of electronics and it will be quite difficult do service them. Do you search generator, master brake cylinder, poly-V belt, air conditioner compressor, baggage compartment, tie rod, or any other spare car parts? Use search function in our online shop and you will find necessary parts. We offer you a wide assortment of car parts.

HOW TO DETECT MALFUNCTION OF THE VALVE INJECTOR

To check the condition of the component, content of carbon monoxide and hydrocarbons in the exhaust gases of each cylinder should be determined. If the injector is in working order, the obtained results should not be different.

To check whether the fuel is injected correctly, connect an oscilloscope to the vehicle body and the injector control device. Malfunctions are detected by the curves on the screen of the device.

Next, check cables connection. To do this, use an ohmmeter. The diagnostics described above is performed with the use of specialized devices; therefore, it should be performed at a service station.