DTC No: P1190 Fuel Pressure Plausibility. Governer Deviation versus Engine Speed to High

Ok so I have pretty much the same symptoms and diagnosis as DreameD
(https://www.landyzone.co.uk/members/dreamed.137672/)
had in this thread:
https://www.landyzone.co.uk/land-ro...fuel-rail-pressure-plausibility-p1190.335256/

So I'm coming to the conclusion that I am going to need a new / refurbished High Pressure Fuel Pump.
The question is, whilst I've got it stripped, what else should I change ? Injectors? Injector Seals? Or just go with the pump?

TIA.

For completeness, here's the background to my problem and where I've got to so far:

06 Td4 Auto L314 (aka FL1)
I am aware of at least 3 others with a similar problem
What are ALL the possible causes of a fault code, read using a Hawkeye Total, and base on your experiences the actual fault and solution:

DTC No: P1190 Fuel Pressure Plausibility. Governer Deviation versus Engine Speed to High

Only comes on after engine is thoroughly warmed up (4-5 miles) and go over 2500 revs, resetting it and it quickly comes back, Leave it long enough and the MIL comes on.

Let it cool down, and it repeats as above, i.e. problem only when warm. driven 5 miles or so. It will hold the higher revs when cool.

Changed the Fuel Pressure sensor, same
Changed the fuel filter, same, (rear offside wheel well)
Checked low pressure pump,
A) plenty of flow,
b) maintains a consistent 320-350Kpa (3.2-3.5 bar)
Changed the Fuel Pressure Regulator
Cleaned the not dirty or clogged Fuel Pickup (Sender) in tank filter.
New Air Filter, New Oil Filter, modified crankcase breather

Still has the problem - what is left ?

Hi DreameD,
How did you come to the conclusion that it had to be the HP fuel pump?
My return line is clear at the tank end.
Thanks

No problems starting you're own thread, but if you want to attract someone's attention it is best to post a reply/question on their thread (or one they're following) or tag them.... @Dreamed

They'll get alerts that you've mentioned them. Don't abuse it though!

I know very little about the TD4, I have British diesel lump in my Freelander - they're slow, noisey, smokey and drop oil - but they very rarely break! Good luck with the problem.