Update -
Removed inlet manifold to clean out the water ways and removed coolant temp sensor - was a bit gunky and the coolant was flushed out brown. Cleaned everything out and also flushed the whole system with hose pipe until clear.
Removed exhaust manifold because of suspected Lambda sensor problem, found out why the sensor would not come out - looks like damaged thread. When my local garage managed to get it out the thread was damaged and we had to recut the thread M18x1.5 (if anybody is interested). Put new Original Bosch in and reassembled the engine.
Started up for warm up and re-fill of coolant - while doing this put the heater to hot to fill the heater matrix and the seal on the valve broken and of course coolant started leaking (yet another part to order and wait for).
Anyway temperature still did not get to 88 degs and Lambda sensor still not operating correctly.
Let the car cool down overnight - refilled coolant and checked with Diag not starting engine and the Lambda sensor was reading 465mv (default if problem).
Switched to an different ECU for testing and saw the same thing. Tried to start the car but did not start (probably due to my ECU being changed so the immobilizer/alarm is not needed).
Swapped back to my ECU - Started and the Lambda sensor starts working as it should everything perfect!!!!!!!!
Don't ask me what changed because as far as I can tell - nothing.
I am pretty sure that the Lambda sensor was damaged as it was completely black with rich running.
I think that some of the problems maybe earthing problems. SPROCKET wrote about this in one of his posts regarding that the Lambda sensor does not work until you put the body of it to earth.
I have cleaned all earth points but this was before i put the engine back together. I am going to attach an earth strap to the exhaust at the point it attaches to the gearbox and see if this helps at all.
Maybe somebody could do this with the high reading lambda problem straight away and see if this eliminates the problem??
SO to get mine running fully correctly now I have to
change the heater valve
Renew the trottle cable and the re-adjust cable position
then set the stepper motor correctly and then I can get the emissions tested.
So time to wait for parts - that normally takes around 2 weeks from England now due to BREXIT 