Ok so i did start to have a go at changing it myself.....but gave up after 1/2hr and took it to the garage.
After letting it cool down for an hour....so they wouldnt burn themselves, they did it.....took em about an hour and they removed the dipstick metal shroud to get access to it.
And at one stage i was very hopefull it was going to be the crank sensor, coz they had to move my car 1/2 way through and with the old crank sensor removed, the car still started!! after a 5 sec struggle tho. So I thought hmmmm.....same symptoms with it connected!!
But its made no difference.......in fact i lie, it has, its worse

.
EML is now on all the time......with a P0700 code that wont reset
And when it struggles to start (5secs) and goes into limp mode it records P1700 as well, tho this will reset.
Good news is the cam sensor error has disapeared!! Dont ask me why tho!! Thats confused me......change the crank sensor and the cam sensor error goes away......but the fault doesnt!
I am now totally lost as whats wrong with it!
So its now had....
MAF sensor
Engine ECU
Gearbox ECU
Cam sensor
Crank sensor
Only good thing that has happend today.......it decided to drip water while it was at the garage.....and we found the leak......jubilee clip not tight on a T joint next to HBV......so my water leak is fixed

And i also changed the plastic washer to fix the clunk of doom on the drivers door.....thanks to Jaime's guide

Anybody any ideas.........

Has anyone with a 2.2 with the same prob.....resolved it yet?
Cheers