It could.
It could.
Yes
A vacuum leak, a bad injector and if the check engine light is on, check the codes.
Yes, it can cause check engine light to come on. Reasons are multiple - anything from air/vacuum leak, spark problems etc. to major failure.
Yes, and it may show up as a random misfire.
It might cause the "check engine" light to come on.
most common cause, a vacuum leak.
No, oil level does not cause the check engine light.
Yes, an unplugged sensor can cause a check engine light.
Yes, water can cause a misfire, which will cause the check engine light to flash.
High idle, misfire, check engine light,High idle, misfire, check engine light,
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.
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.