Hoping that this will wake up the thread
My problem is the same,
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 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 ?
I found this on a BMW forum, don't know if it is / maybe the solution?
BMW.pdf