It doesn't automatically go off just because you have it serviced or something. They actually need to be reset manually after it comes on.
The problem was not fixed with a tune up, or the light is on because it was not reset by the service station.
what causes the rear lights to stay on while engine is running. the car is park
There are dozens and dozens of causes for the check engine light to stay on. You need to have the computer checked for codes to know possible causes.
Needs an inspection now!
Bad sending unit
It depends on the vehicle, some will blink like that when the refrigerant level is low.
no a burnt out headlight will not cause a check engine light but if you go to most of the part places they will check the check engine light for free
3 lite
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Thousands of things. Take it to a mechanic who has a scanner and they can tell you what the problem is.
No
There Could Be Somthing Wrong With the engine. You should take it to a repair shop or something.