Thanks Steptoe.

That is worrying. I've got a second hand (but good) Throttle body and new thermostat housing and stat to try next. Not my ideal way of working by just replacing parts, but at a bit of a loss.

My worry is that these wont help since I can see the throttle pedal registering a result on the hawkeye and ultimately disconnecting the maf everything works perfectly, which makes me think the throttle body must be working o.k. 2010 L322 Autobiography Black Edition
1975 Land Rover