Oh the spring yeah!
Hi all,
To close this topic which has been open for way too long…
The issue was resolved by replacing 1x rubber inlet manifold [RHS]. Since then I’m getting 180miles+ on a tank AND the low fuel warning light which I assumed had long since failed [either bulb or sensor] does work!!
Such a frustrating issue yet so easily resolved!!
Rgds. Noel
Congrats, thanks for the update. 
Congratulations for sticking with it and the one and only was spot on
CHRIS P