What is the reason for the sudden poor fuel supply of Xichai Guosan 375 HP engine?

If the diesel engine fails to supply oil intermittently, it is mainly because the throttle is blocked. There are many reasons for oil circuit blockage, such as gasoline filter blockage, nozzle blockage, insufficient pumping pressure of gasoline pump, etc. It is also possible that the three-way catalyst and exhaust pipe of the exhaust system are blocked, too much carbon is deposited in the throttle, and the idle position sensor and air flow meter are broken. If the owner recently changed the floor mat, it may be caused by the floor mat sticking to the accelerator pedal. If you can't step on the accelerator, there will be intermittent failure to add the accelerator.

The car ran and suddenly refueled. Why don't you go?

1. The throttle valve fails or the intake manifold leaks and needs to be replaced in time;

2, ignition system failure, such as spark plug gap is too large or too small will lead to sudden refueling when the vehicle is driving;

3. Oil supply system failure, such as insufficient pump pressure established by gasoline pump.

Solution to sudden failure of vehicle refueling;

1, check whether there is any bad phenomenon in the signal of the throttle sensor, and replace it in time if there is any;

2. Check whether there is any problem with the gap of the spark plug, and check whether the gasoline filter leaks oil or is blocked;

3. Check whether the oil pump is working abnormally. During normal operation, the oil pump is noisy, and abnormal operation will make the vehicle lack power.