[Drew Peacock]

Hey there,

My e90 N55 has a misfire or some form of a jitter that only happens at high rpm when accelerating quickly. It started sometime between now and when I did spark plugs a couple weeks ago, maybe they just need tightening? There is also a faint smell of fuel in the cabin sometimes which leads me to beleive there is indeed some sort of issue with the plugs and If not the plugs, the injectors or the coil packs. However, it has been about -30 degrees Celsius where I am located for the last while which might contribute to the problem in a way I am unaware of. I’ve checked my codes and have no codes for any misfires in any cylinders or engine problems. Any thoughts or ideas?

Thanks in advance