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The oil pump cannot rotate;
Failure of oil pressure regulator;
Support vibration failure;
Fuel pump short circuit or open circuit;
Poor sealing of sealing ring.
Fuel injector
1. Outline drawing and pin definition
2. Working principle
The fuel injector is actually an electromagnetic switch control element device. Its fuel
supply mode adopts top fuel supply structure.
The inner part of the injector is designed with an electromagnetic coil around the iron
core. The two electrodes from the electromagnetic coil are the input control interface of
the injector. The fuel injector is directly connected with the control circuit of the engine
electronic control module (ECM) and the system power supply through the engine
harness.
The solenoid coil of the injector directly receives the output control voltage signal from
the engine electronic control module (ECM), that is, the ECM directly drives the solenoid
coil to control the opening and closing time of the ball valve at the lower end of the
injector. When the electromagnetic coil is energized, the electromagnetic force is
generated to overcome the spring force and fuel pressure of the ball valve, so that the
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