Tried (nearly) everything
Replaced Injector #2, HT leads, Entire throttle body, head gasket including reface, and all fluids (no damage apparent and there was never any water in the oil - or vice versa)
Replaced Coolant temperature sensor.
It seemed to run better after the new head gasket - but on a short test drive developed the rough idle again (as it got warm?)
Plugs are slightly blackened and sooty .. and there is a slight smell of unburned fuel at the back.
Inlet, exhaust and head gaskets were all replaced with quality items (£50 kit) - new head bolts (£21) new oil (£30) Throttle Body (£10 from a mate) CTS (£10)

Sorry about the poor audio

Suggestions ?

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