If the vehicle was running fine before the changing of the plugs and coil packs?I would focus on the plugs. Did you use OEM plugs? Also, why are you changing the 2 coil packs?I have a 2103 Honda Pilot with 111,000 miles. I have changed all spark plugs and 2 coil packs, the vehicles still throws codes and runs bad. Any ideas for solutions, thanks??