Hey Jason that's a brilliant idea.
Azza, have you thought about trying the ECU reset instructions? They're here somewhere, don't forget to drive it gently after you do it and then shut the vehicle down.
I really have to try it on mine, although we just pulled 11.8LPHK which is awesome considering we're about 300Kg over kerb weight and had 4 adults in it.
How do I go about doing the reset Tony? If it worked for Jason it should work for me. I just want this 'epic saga of the smokey navara' to end