i have recently purchased a 01 740i sport car runs great fast ..its sweet!!
a couple of weeks ago in the am 1s start of the day it ran rough i taped the throttle a couple of times and it smoothed out and ran fine the rest of the day so in the am every 1st start i would just tap the gas a couple of times and no problem no check light nothing the other day i noticed once i got off of work it did it again now its when the car sits for a few hours i.e. over night or at work while sitting for 4 to 8 hours
i when home and put my scanner on the car and found multiple misfires and misfire on cyl 3n so i swapped the coil pac 3to 4 cleared the code and took it for a spin i jumped on it trying to get it to fail on it hard several times came back checked the code and again multiple misfires and misfire on cyl 3 i am not sure where to go next could the plug to the coil pac be bad?
if so can it be swapped wit another for testing purposes?
Thanks in advance