No
No it will not.
Nothing except - maybe - a broken belt.
Because your engine is too hot. or the light is broken.
Broken or rusted out exhaust system.
Yes, an unplugged sensor can cause a check engine light.
No, low gas cannot cause a Check Engine light to turn on. There would have to be a problem within the engine or the engine wiring for that light to come on.
No, oil level does not cause the check engine light.
Yes, water can cause a misfire, which will cause the check engine light to flash.
No, but something that could cause uneven idle could cause the check engine light to turn on.No, but something that could cause uneven idle could cause the check engine light to turn on.
it has a zenon gas that can cause cancer to others if broken
If it is an active code, "still broken", the code will not reset. You need to make sure the cause of the code has been repaired.
The check engine light is reset with a scan tool after repairing the cause of the fault.The check engine light is reset with a scan tool after repairing the cause of the fault.