car wont start on 2004 Pontiac Grand Am

my pontiac dies 2 weeks ago. i just replaced the battery because it was completely dead. now the battery cranks but wont fully start the car. the gas was almost empty so i put almost half a tank in manually and it still wont start. any suggestions

1 answer
Check for spark at the plugs and fuel pressure at the engine. Check that the injectors are opening properly.