[lekang95]

Hi Guys, My n54 now is having random shutter or hesitation when WOT at low RPM(around 3k), it feels like engine choking for a second and go again. no Missfire code or any engine fault code for now. i just found out there is some lean condition in the log.
running catless downpipe, mhd stage 1 v10, b58 coil conversion, new 2 step colder spark, stage 2 walbro lpfp, new o2 sensor.
injector have changed to index 12 but it is used parts. change from ori coil and 1step colder spark setup to B58 2step colder no helping.

Hope anyone have experience of this can help! Thank you
MHD log Below

https://datazap.me/u/lekang/swap-cyl...22&zoom=95-187