【Fault description】
    In the way of running on the road does not accelerate the phenomenon of refueling, then slowly turn off, and then no longer start the car.
    【Inspection process】
    Will be timing belt, fuel pump, spark plug one by one after the replacement, the fault remains the same. And later changed the engine computer and throttle assembly, failure or not excluded. The car is fully checked, the system fuel pressure is 280kPa (no vacuum), the ignition timing is correct. Ignition coil, the primary resistance of 0.6Ω, the secondary 145kΩ; water temperature sensor removed test is good, the cylinder pressure is normal. The above parameters are basically the same as those on the maintenance manual. All the components loaded all the cars on the start test, the beginning of the start, the car suddenly a few sudden, with the meaning of the car. Remove the four spark plugs and find them all drowned by gasoline. Do it with the wind to do the fire test, the sparks are normal. The car is equipped with a ternary catalyst converter, is it because of its damage caused by this failure? So remove the device. Remove the four spark plugs temporarily do not install the car, and then remove the four injector electrodes. On the car to step on the accelerator pedal in the end, so that the throttle completely open, start the engine several times, back to the spark plug, nozzle electrode. Start again, smooth the car, running normally. Finally changed the ternary catalyst converter, and the replacement of the computer, fuel pump, throttle back into the car. After the operation is normal, troubleshooting.
    【Fault Analysis】
    The reason the car is not the fire is ternary catalyst converter due to the usual use of poor fuel quality and car wash when not pay attention to the water into the ternary catalyst converter, causing it to premature damage, so that poor exhaust. Before starting the engine, remove all the spark plugs and remove the four nozzles of the injector so that the throttle valve is fully open. The purpose is to allow the unburned gasoline in the cylinder to be discharged as soon as possible so that the spark plug will not continue to be drowned.