Re-sync needed maybe?Little update, we have swapped the fuel pump with a tested pump and now the car won't start, the i tank pump is pushing fuel through but the new pump is not working. We have cracked the fuel pipes to the injectors and no fuel is coming through at all.
Take the fuel line that feeds the fuel filter off and crank engine, should get 180ml of fuel in 10 seconds...this will confirm the intank lift pump is working.
If that is OK, it could be the Engine ECU to BeCM could need re-syncing....it has been known to lose its marbles (although rare on the Diesel but common on the petrols)
Trust the new pump is from a Range Rover.....pumps from other M51 variations won't work.
If it is a pump from another M51, you'll need to swap the top part over with the Range Rover electronicals in it to be compatible!