I have an 06 6speed 4x4 think I have an injector hanging up original injectors with 90hp nozzles and 135000 miles it stumbles a little bit when taking of in 1st and 2nd and puffs little white/grey smoke also rail pressure is good at 7k at idle and 23k max and never drops real low even on long pulls any input in wether its and injector or could be something else also ohm'd the injectors all read .4-.6 Also checked the Fca and that seems good thanks in advance also have ats 4K turbo and smarty so6 tuner and fass 150 fuel pump and original cp3 with bag of parts thanks in advance
also at like 1300 and around 1800 rpms in neutral it's feels like it has a slight miss

Anybody have any input?