Think my lead trouble is similar to yours Umpkin I binned the pattern ignition leads tonight and re-fitted the 21 year old nissan set and the missfire has gone away completely!!.. weird those leads were only a couple of years old .
I should have enough plugs to last me about 10 years , a new set from nissan is on the shopping list i can just about afford them now i'm not buying iridium plugs , thanks for the wise words!
