Ford V8 car suddenly stalled

       Symptom: a V8 Ford sedan suddenly turn off the highway in the mountains, and after several starters were not effective. Before driving the car does not turn off normal, fault light on the dashboard does not shine.
       Maintenance process: preliminary examination: Unplug the power lines from the central MST-100P distributor for starting the fire test, the results of powerful spark; then unplug the sub-cylinder high-voltage test fire the same normal. Step two checks: Unplug a power injector plug, connect the multimeter voltage profile, start the engine, in the hands of regular operation swing, indicating the injector pulse power supply. The third step is to check: When you open the supply line pressure relief valve, but no fuel spray discharge, indicating that there is no oil supply system.
       Cause no oil pressure reasons: First, the fuel pump is not working; Second, there is a serious leak oil system places. Carefully check the fuel tank of the oil return pipe to the entire pipeline engine injector, no one leaks, leaks can be ruled out. To this end will check obd news the focus on the fuel pump does not work. To prove this, let a man put his ear to the fuel tank filler neck, the other person will twist the ignition switch to the ON position, did not hear the sound of the pump oil pump, oil pump does not have to prove the work. The reason the pump does not work there are two: First, no electricity, and second pump damage. First check whether the pump power. Built in the trunk of the car to the left of the grid controlled automatic disconnect pump relay may be bumpy mountain road driving, the automatic disconnection device is disconnected. After examination, the automatic disconnection device is in the ON position, not disconnected. Then check the pump relay and found no power supply. Then check the fuses and found 30A insurance has been blown. After replacement insurance, twist the ignition switch to the ON position, the fuse is blown once again, indicating that the circuit has a short circuit. In order to find as soon as possible short-circuit, the first pump on the tank unplug the power supply plug, put the fuse, and then twist VAG COM VCDS the ignition switch to the ON position, the insurance is no longer fuse. At this point, you can certainly burn the fuse reasons in line inside the tank or the pump itself. So out of the pump from the tank. Immediately see the line of fire pumps into the tank has been frayed fixed pump molten metal frame and stick together. For-welding a wire and wire fixed retest after loading the car, everything is normal.
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