Why does the engine fault light turn on and then disappear after restarting?

[LeJudah]

The reasons why the engine fault light turns on and then disappears after restarting: 1. The fault light illuminates because the engine control computer detects a fault in the control system. The computer also records the fault code and some key data at the time of the fault; 2. The main reason for the engine fault light turning on is excessive carbon deposits in the throttle or inside the engine, causing an imbalance in the air-fuel mixture ratio; 3. If you frequently engage high gears at low engine speeds, it can also lead to this phenomenon. For intermittent faults, if the fault does not reappear within several operating cycles, the fault light may turn off, but the fault code will still be recorded in the computer. It is recommended to visit a repair station to check the fault code. The repair station can conduct further inspections based on the fault code to identify the root cause of the fault.