Missfire and Lumpy idle???

[steves12]

Already checked for an air leak and orange turbo to turbo pipe seal is ripped so got on ordered £24 Ordered some nissan HT leads, distributor, rotar arm and some NGK BCPR7's.
Temperature seems to be running too low as well so ordered a new thermostat and coolant temp sensor.
As for the low idle when cold cleaned out the air regulator but no joy and nissan want £100 for a new one so might give that a miss for a while!

I'll wait for the parts to land in work an let you know how it goes!