hi,think i have found problem with my rough running smoke etc...but still wont run correct..fitted 2 new coil packs but there still seems to be only running on drivers side of engine and not on the other 3 cylinders?..do i need to get engine management reset and does this have to be done at garage to get it running correctly..i know there is no power that side as i removed all 3 coils and engine runs the same?...any advice is appreciatted....john