Recently purchased Patrol 1998 4.5 GRX,my second Patrol. Occasionally on starting or whilst running drops one cylinder. Three weeks with Nissan and no cure.
All new plugs,plug leads,rotor,distributor cap,distributor serviced, injectors cleaned by Bosch,new fuel pump, air filter clean. After a few ks or minutes it usually comes right.
All computer diagnosis stats as per Nissan spec.