My remap cuts the turbo when the fuel reserve light comes on, is this a problem or could the map have been done with this in to save fuel when running low? Whichever way I would like to remove this feature, found quite dangerous at 80mph on the motorway going up hill and suddenly the car lost most of it grunt. Any help would be appreciated!

chek vacum valve on the turbocharger

I don't think there's any vacuum leaks, and as soon as I put fuel in and the reserve light in the dash goes off, everything goes back to normal.