i have an 02 wrx that registers misfires on cylinders 1,2 and 4. i just recently rebuilt motor due to a snapped timing belt. i checked compression on all cylinders and it is in tolerance. noticed that crank pulley is bent and wondered if this could cause this problem? also the car sat for a year before i rebuilt it, could 3 spark coils have gone bad? any help would be appreciated, thanx,dave