Why did my engine light come on then turn off

- Why did my check engine light come on then turn off
- Why did my engine light came on then turn off
- Why did my engine light flash then turn off
- Why did my engine light blink then turn off
- Why did my check engine light came on then turn off
- Why would my check engine light come on then turn off
- Why did my check engine light turn on then turn off
- Why did my check engine light flash then turn off
- Why did my check engine light blink then turn off
- Why did my check engine light start flashing then turn off