how do I try to find out what is going on with my car(my check engine light is on 1995 Toyota Celica

how do I try to find out what is going on with my car(my check engine light is on)I keep good maintanance on my car,

by in New York, NY on August 20, 2013
2 answers
ANSWER by on August 20, 2013
scan the code and research possible causes
ANSWER by on August 21, 2013
auto zone will scan codes then post. DO NOT BUY PARTS ON WHAT THEY SUGGEST