Nissan Repair: nissan 300zx miss firing, nissan 300zx, lamar

Question
I have a 1990 300zx that is miss firing badly. When I am idling it starts to miss fire.  When I am driving i cant notice it.  I am also not at all sure what cylinder is miss firing.  Any advice??

Answer
Lamar,

Replace the distributor as it is contaminated with oil.  That should correct the problem.  Also, if you have not replaced the plugs do so.  NGK or Nippondenso are preferred.  Platinum is best.  Stay away from Bosch plugs on a Nissan.  Just my experience here.