2005 sunfire

I have a 2005 sunfire that will not start. i drove it to work just fine in the morning, but when i got off work it would not start. The engine will crank just fine, but it wont fire. you can hear the fuel pump when you first turn the key, so i know its not a pump problem. Anyone have any...

Hello, my car is a 2005 Sunfire with a 2.2 engine. The other morning I went out to start my car and it would not turn over. We tried boosting it with no luck and then tried charging it for 2 hours, again with no luck. We replaced the battery thinking it was dead but that was not the cause of it...