During emergency refueling, there is a shooting sound at the throttle opening.

This phenomenon generally appears in early carburetor cars. Your 1.6 liter should be 20 12 New Focus, 1.6 liter New Focus is 1.6 liter Ti-VCT engine, equipped with the latest dual independent variable valve timing system. The engine adopts the latest in-cylinder direct injection technology, so the output power and torque of 1.6 liter reach 90 at 6500 rpm and 4000 rpm respectively. The meter peak reached and surpassed the original Fox 1.8 engine. This is the extreme value of the engine, and the ignition time of the spark plug is set too early. When the oil is ignited before injection, the ignition will be white. After the engine oil is ignited and sprayed into the cylinder, the engine oil will not burn, and the unburned mixture will be directly discharged to the exhaust pipe, which will be ignited and exploded by the high temperature gas in the exhaust pipe, forming a shot. Suggestion: As a new car, it must be a quality problem, so it should be returned to the factory for repair in time during the warranty period. 1, check the spark plug gap and replace the spark plug if necessary. 2. Check the fuel injector for quality blockage. 3. The computer detects whether the ignition time of the car is appropriate. If not, it will restore the mode of engine adaptation and learn again. Finally, pay attention to the oil.