2008 kia rio5 won't start

[MendyH]

My 2008 kia rio5 stopped starting. It turns over, but never starts. I noticed that the fuel pump doesn't engage so replaced it, no help. Replaced fuel pump relay, checked wired running to fuel pump and they sure getting power, and I have checked all fuses I can, but still it won't start and I don't hear the fuel pump engage. Once we blew out the ignition and the fuel pump did come on but still wouldn't start.any idea? We also check the four could and they are good. The code reader read misfire when the problem began.