Regal gs actively braked, re-ignited and turned on again.

I suggest you go to a professional 4S shop to check it out. Generally, after flameout, there will be excess pressure in the pipeline. Please use it directly next time to check whether the fuel pressure will drop after flameout.

This phenomenon is generally caused by carbon deposition. When there is a large amount of carbon deposit in the engine, the fuel nozzle throttle spark plug is blocked seriously, which will lead to sudden flameout. You can go to the S shop and clean the throttle and nozzle with cleaning agent, which can be improved. Therefore, you should pay attention to driving at ordinary times, don't drive at low speed, idle for a long time, and use good quality engine oil to prevent carbon deposition.