These engines are pretty bulletproof. I recon the most reliable ever fitted to an rr.

We will not discuss the gearbox  2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

They might be bulletproof, but they aren't numpty proof. I'm just shocked that the engine ran so well with 4 out of 7 nuts missing on the inlet manifold Still that might explain why it got worse when it was hot, can't imagine that a plastic manifold wouldn't distort with heat. Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

Good news on sourcing the fault

All be back together soon  .
Experience is the only genuine knowledge, but as time passes, I have forgotten more than I can remember
Volvo V70 P2 2006 2.4 Petrol 170bhp Estate SE
MG Midget Mk1 1962

Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

Hi Tim, yes it is a relief that some of the injectors were dud. I did consider doing a leak back test, but decided that having them tested on a proper rig would be better, as they test for worn nozzles too, something that a leak back wont show. Plus they clean them too, so they are as good as new and covered by a Bosch warranty And not that expensive either, Clean and Test is £17.50 and a recon is £135 and they wave the cleaning cost. That's a hell of a lot cheaper than the prices I have seen on the parts suppliers / fleabay sites, they have been£200 +  Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

It lives

Put it all back together today, turned the key and , a noticeably happier engine. Took it out for a test run and all the torque vibration that I was getting between 30 and 60 has gone

The injectors ended up costing me £410, that was for 4 cleaned and tested and 2 cleaned and rebuilt with new nozzles and valves. And the best bit is I got a full Bosch warranty on the work

This is the mob that I used http://www.fastlinegroup.co.uk/

Charges are £17.50 + for clean and test, £135 + for full recon, less the cleaning charge. And before you lot say I have overpaid, I had new compression washers supplied too. Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

Top job mate, glad your sorted...  Pete
__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold
2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold
-Click for Project Fatty off roader-

I am pleased that you got it all sorted... it WAS a saga ! I just hope my 'little' prob stays that way !!  'Knowledge Is Power'