Newbie with a '04 Dmax with 8700 miles. I drive it once or twice a week. As the temperature here (Wyoming) has dropped, it has developed some starting issues. It seems like, on the first start of the day, it cranks longer before it starts and when it does start it blows black smoke and runs very rough for 15 seconds or so. It then runs fine. It has always started the first time. I keep it in the garage where the temp is +/- 20 degrees. It has started as cold as -5. The colder it is, the rougher it initially runs and the longer it runs rough. After reading other posts, I am hoping it isn't injectors.