Update...........
Pick up vehicle from dealer after having PCM software update
Applied,so far so good.
I was thinking about how this fault might have be propagated
From the first fault with the pedal assembly,I believe that clearing this code would have reset the adaptions and
Consequently the PCM viewed the output from the aged turbo and engine,as outside it's stored values in its original map.
Time will tell.
Thanks Mark regards Nigel.