The failure of the injector can directly
cause the engine to be abnormal. Engine injector failure are:
1. Exhaust pipe;
2. The cylinder is not uniform, the engine
produces a significant vibration phenomenon;
3. The engine power drops, the vehicle is
running weak.
In order to judge the diesel
injectors failure, the engine can run idle, followed by the cylinder
for oil off test. When a cylinder to stop the oil, pay attention to observe the
work of the engine and sound. If the oil off, the exhaust no longer black
smoke, the engine speed changes, that is, the cylinder injector failure.
After the diesel injectors
are judged to be accurate, remove the injector and check it on the injector
calibration table. Fault generally have the following:
1. The fuel injection pressure is too low;
2. Fuel is not atomized, or obvious oil
flow;
3. The fuel injection fuel tank length of
different fuel, oil beam is not uniform;
4. Nozzle drip;
5. Fuel injector needle stuck, burned to
death.
After the above situation, you should
remove the diesel injectors repair.
If serious damage should be replaced. Replace the injection pressure should be
adjusted to 22 +0.5 MPa, and spray the situation is good, do not drop the oil.
The reason for the failure of the nozzle is mainly oil and filter problems,
such as burning low-grade diesel, filter filter long-term use does not clean,
do not change caused. Users are advised to use the national standard of diesel,
each time a vehicle cleaning diesel filter, two replace the diesel filter,
regular cleaning tank.
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