My 2010 FL2 93k miles has developed a stutter or a juddering when accelerating between 2100 and 3000 RPM, in 5th and 6th. No other symptoms.
Is this a fault with fuel supply, a turbo fault or something else? Anyone with ideas?

There's quite a lot of posts and info on the judder issue. Search should give you a good start 👍 Learned to drive in 2011.
Bought a Micra - great little car
"Upgraded" to Kia Sportage - hated it
Proper upgrade to FL2 TD4 GS 60 reg Facelift - tailgate paint issues, fuel gauge rewire, transfer box failure at 36k miles, clutch at 60k
Reconditioned diff at 70k ish
Sold at 84k and now on a DS. Terribly unreliable.
Sold DS for a 2021 Mitsubishi Outlander PHEV. Fingers crossed....
Sold Outlander for a 2014 SD4 SE Tech because I’m mental

Yes there is but you’ll never cure it, been trying for eight years. Whatever you do it may fix it temporarily but it will soon return . Toyota next time , just can’t be doing with the aggravation the cars bring you .

Good luck with Toyota - I had a mid 90's Rav 4 and it was the most dangerously under-engineered POS that I have ever owned. FL2 HSE Auto Galway Green
Evoque SD4 Auto Blue.
FL1 HSE TD4 Manual Black - Gone.
RR Classic V8 EFI - Gone

There are a lot of diesel issues down under with "unbreakable" cars with owners left to rot & denial that there is extremely poor engine design. Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

If it only does it in the wet it could be the infamous air filter drain valve.

Haldex been serviced? That's another one that can cause a judder as it's trying to figure out how much power to distribute to rear wheels