I recently bought an 06 mustang 4.0 V6, I drove the car Saturday evening, and when I went to start it Sunday it would crank but would not start. Replaced the plugs and wires and the cool pack and the car ran, took it down the road, let it run for about 15 minutes shut it off and it wouldn’t start back. The code it’s throwing is saying EGR valve, but not sure if that could be why it’s not running. Anybody have any other ideas?