Fault code table of wp 10 electronically controlled diesel engine in Weichai Power National III

The phenomenon of insufficient power of diesel engine is that it is difficult to start or increase the speed after starting.

Influence of fuel supply system failure

(1) Insufficient oil supply:

There is less oil in the cylinder, which leads to less heat generated by combustion. When the heat is reduced to the point where it can't meet the engine load, the engine can't do anything.

(2) poor spraying quality:

When the engine is working, the spray quality of the injector is poor, the reaction with oxygen is less, and the heat generated is less.

(3) Influence of injection advance angle:

The amount of fuel injected into the cylinder should be appropriate. If the pressure rise rate of fuel increases during the fast softening period, it will easily lead to rough operation of the engine. If the injection advance angle is too small, the thermal efficiency will decrease significantly.

Weichai power guosan wp 10 electronically controlled diesel engine;

Extended data:

Detection of diesel engine power shortage;

1, fuel supply system

The fuel supply system is a place where cars are prone to problems. Insufficient fuel entering the combustion chamber will lead to insufficient power, which may be caused by blockage of fuel nozzle, oil leakage from oil pipe, blockage of gasoline filter and long-term decline of gasoline pump power.

2. Air intake system?

The engine of the car needs to run. Besides fuel, air is also needed, otherwise the engine will not run smoothly. The possible reason for the lack of automobile power is that the air filter or throttle system is dirty and blocked; Intake air temperature and intake air pressure sensors are not working normally, and the air flowmeter is out of order. If there are problems with these parts, just repair or replace them in time.