Well I have done some testing with my climate control: coolant sensor code 51!
Basically I think my car seems to take a while to get warm "temp gauge" but it is pretty stable when it gets there about 2miles down the rd or more!. I have seen it move 1 or two times as i put above but its hard to get it to move once there.
I have done some testing with the climate control readings. Today
I started the car to make my journey and selected the 51c coolant sensor, watched it climb "can't remember what it started on" but the needle/gauge beat it there 91 on needle and 75ish on the climate control screen. Right 5-6 miles down the road and stopped "both say 90s" stopped for only 2-3 mins. When I got back into the car I selected the climate control: code 51c coolant sensor and "WHAT" its at 40 my needle at this time was still on 91

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I started the car "thinking" maybe it will move "very" quick but NO it took ages like another 2miles down the road for the climate control to get to 90.
Got home left the car 5mins and tryied again the climate control said 40s and the needle 90 Also the choke kicks in every time this happens even with the needle at 90. The car has a slightly rough idle maybe due to this to.
I take it this means I need a new coolant sensor ? more than a thermostat what do you think lads ?