I have a 03 g35 6mt the other while driving its as if the power just went now I have no power after 3500rpm I thought it was in limp mode so I reset it to see and ita still the same it threw a p0300 after that but idles fine and I dont feel a misfire even while driving. I took a look at the fuel trims and it read long term was 100 % that doesnt sound any where near normal the clutch is about 2 months old I just changed plugs and valve covers hoping it would solve this but still same issues