What does the code and FF data tell you?

 

so let's try this again, I tried to reply 3 times already, it doesn't seem to be working.

That's the FF from another session. It tells me what the problem is, which I already know, but not where it comes from!


Address 01: Engine Labels: 059-907-401-V2.clb
Control Module Part Number: 7P0 907 401 F HW: 4G0 907 401
Component and/or Version: 3.0TDI EDC17 X41 0005
Software Coding: 292A401A233E01020000
Work Shop Code: WSC 31414 790 00001
ASAM Dataset: EV_ECM30TDI0117P0907401F 001006 (VW52)
ROD: EV_ECM30TDI0117P0907311C.rod
VCID: 323D1AD5C4AC9F4A49E-8066
1 Fault Found

5211 - Fuel Rail/System Pressure
P0087 00 [10100111] - Too Low
MIL ON - Not Confirmed - Tested Since Memory Clear
Freeze Frame
Fault Priority: 2
Fault Frequency: 1
Mileage: 219107 km
Date: 2025.07.12
Time: 18:56:53

Engine speed: 2565.00 /min
Normed load value: 90.6 %
Vehicle speed: 115 km/h
Coolant temperature: 71 °C
Intake air temperature: 31 °C
Ambient air pressure: 970 mbar
Voltage terminal 30: 14.120 V
Unlearning counter according OBD: 80
Fuel temperature: 37.5 °C
Mean injection quantity: 70.54 mg/stroke
Rail pressure regulation: status-Bits 0-7: 5
Fuel high-pressure: actual value: 1466500 hPa
High fuel pressure: specified value: 1799200 hPa
Pressure control valve adaptation factor: 1.0231
Fuel level: 49.00 l

 

but not where it comes from!

A code will never tell you where it comes from.... it provides hints to allow further diag or troubleshooting.
So the FF data you're showing, points to ~2500 RPM at high load.
Your next move should be to do proper logging (including rpm and better graphing) and also verifying low pressure fuel delivery. It sounds like everything was thrown at it recently, so there's no reason for any of these components to have already failed, but now you need to start at the fuel tank and work your way up to the injectors.