Easy fix no one has talked about on this thread caused by making an easy mistake when not paying attention while installing a coil. I have nissan cls60 and I was getting the same code 34. Found one coil was not working correctly from unplugging them all 1 by 1. When I got to the one in question it didn't change the way the lift was running. So changed it out with 3 different ones I had laying around. Still didnt fix the missfiring problem. Turns out the mechanic that worked on it put the coil in and missed the spark plug. And I did the same thing 3 times. I finally looked more carefully and used my hand to push it up to not miss spark plug. And then started it up and it ran great. Problem solved. Hopefully this helps people out.