About 3 years ago my car had a cracked cylinder head. I had not driven it since this incident occured. I recently put a rebuild cylinder head on about a month ago. Now when I go to start it up it turns over nicely, but the engine wont fire. I replaced the fuel filter, cleaned gas tanks, replaced battery and put fresh fuel in, but the car still wont fire up . Volt-meter shows voltage with car ignition on for 6 coil wires. My father thinks it might be the 6 coils sitting 3 year without use and possible ECU (electronic control unit). Any suggestion?