Thanks Benzmac and Jeff.
I have checked the injection nozzles. Had a specialist check them and he said they were working fine. I also broke loose each injection line and checked it that way. I could hear a marked roughness on EACH line even while it was taking those "spells"
Next, I'm going to check compression AND
fuel pump, make sure both working ok. Do you feel it would probably more likely a compression problem or Pump problem? Which would you check out first?
I can't for the life of me understand why it takes rough idling spells intermittently??? Why not consistant?