Excuse me, how does Peugeot 307 disappear automatically after fault alarm?

The warning of the airbag light should be that the wiring is knocked out by vibration and the emission is equal. It should be that the quality of the gasoline you added is not good, which leads to the incomplete combustion of the injected fuel. When driving for a long time, the high speed of the engine shakes off some carbon deposits, which leads to the ECU module not adjusting the injection time and state in time, and also causes the incomplete combustion of the fuel. The emission monitoring system will detect it, so the alarm is an occasional failure. Run for a few days until the tank of oil burns out. You can also go to the 4S store and delete it with the system. In addition, your car has run 40,000 kilometers, so you can clean the oil system such as throttle and injector. At the same time, the air intake system can also be cleaned. Then you will feel that your car will have good fuel consumption and driving conditions.