Mine (I4 FWD) seems to have a miss like it is running rich for a few seconds also. Don't know if I should take it in or not. I suspect the cold weather is adding to it and it will be warming up outside soon so will probably will not be able to duplicate it.reako said:My 4cyl Nox kinda sounds like an old boat for the first few seconds when it starts up cold. Pretty funny, probably not right but ah well. Warms right up quick and runs fine other than that. I think it's worse with ECO mode on, I might try to keep that off when shutting down. Will probably be better when it's warmer out as well.