My 91 626 wont start

Well yesterday i got in my 626 and it would not start I though my gas gauge was not working and thought i was out of gas, so i put gas into it and still did not want to turn on and after all it started... I went to school, store, put more gas, back home, and just drove around and gave me no more problems and today in the morning it did not want to start again it it did not start had to use my weekend car 87 RX-7... Thanks for the help in advance