yea im an idiot...i noticed nothing is wrong with the driving

but everytime i start the car the check engine light is on

my ride has 92k, i was on acuralink and it didnt say anything about getting a maintenance check due

the previous owner said it might be the o2 sensor? how much would this cost?

any ideas, i kno this is a pretty general question

 

we have no idea whats wrong. the light could be any number of things. my suggestion is to bring it to a autoparts store that does free code reading and let them read it for you and get a code. then come back to us and we can help you from there