What is the reason why ZTE pickup high pressure common rail engine can't refuel?

Blocked oil circuit, dirty diesel filter, carbon deposition in throttle and low rail pressure will all lead to the inability to refuel ZTE pickup high-pressure rail engine. Oil circuit blockage: When the oil circuit system is blocked, especially when the fuel nozzle is blocked, the fuel cannot be fully delivered, which affects its incomplete combustion in the engine cylinder. In this way, the engine power of the car will be reduced, resulting in weak refueling. It needs to be sent to the repair shop for inspection, and whether it is necessary to directly remove the entire oil circuit for thorough cleaning. Dirty diesel filter: It should be noted that there are three diesel filters. There is one oil pipe in the oil tank, and the other two are in the oil inlet pipe, which needs cleaning and maintenance. Throttle carbon deposit: When the car travels too much, it is not maintained in time, which leads to the blockage of throttle carbon deposit, which eventually leads to the decrease of automobile power and the increase of fuel consumption. Need to clean the throttle. Low rail pressure: * * The rail pressure relief valve is too low, resulting in insufficient oil supply and weak refueling. It needs to be sent to the repair shop to find out the reason in time for repair.