UPDATE: We hit 45k and the car had a D flashing and rough idle. We had it towed to Honda dealership in California where wife was at an event. This is 8 hours from home. They said issue was fuel injectors ( same code P0304). Replaced all of them for $1600 and told no guarantees this will not happen again. The dealership said this is known issue with design of this engine. Anyone know of class action against this known issue? Will update if lights come back on. Wife is driving it home as I type.