2002 Altima 2.5SL hard start and rough idle
Hello All. I'm hoping for some help. As the title states, I have a 2002 Altima 2.5SL with 62k on it. Symptoms are hard cold start, and rough idle for about 5 - 10 seconds. After that, the idle smoothes out and the car runs great. I was getting an SES light, and pulled the code. It is P0300 which is a random engine misfire code. I replaced all 4 coils and plugs. I have also changed the crank position sensor. Any suggestions and help would be greatly appreciated.