Rover owners: T Series Turbo Not Idling

Hi Guys!

After some advice if I may!

The turbo has been off the road for a year or so, and has now come back out and has been running for a couple of weeks now. However, upon jumping in it the other day, it for some reason will only start after applying a small amount of throttle, and is needing a constant application of throttle to remain running. If I take my foot off, the car tries to idle so low that it just stalls.

It always has been a bit weird on idle - before this larger issue, it would hunt down to near-stall twice before coming back up again after the first throttle use after a start. Looks like the two issues are related! It's recently had new plugs, HT leads, coolant temp sensor, dizzy cap and lamda sensor as part of a larger service.

Any help appreciated. :)