Why does check engine light keep turning on and off

- Why does my check engine light keep turning on and off
- Why does check engine light keep coming on and off
- Why does check engine light keep going on and off
- Why does my check engine light keep coming on and turning off
- Why does my check engine light keep going on and off
- Why does my check engine light keep flashing on and off
- Why does my check engine light keep popping on and off
- Why does my check engine light keep blinking on and off
- Check engine light keep turning on and off
- Why does my check engine light keep coming on and going off