2010 Jetta TDI Fuel Pressure Faults

[dr_aftomat]

I'm new to the site and appreciate any help you guys can offer. My wife's TDI just barely cleared 40k miles and suddenly started loosing power, then after slowing down it would start cutting out at about 1400 rpm. I happen to be right by an auto parts store so they pulled the code saying the fuel rail pressure sensor was bad. I replaced it, replaced the fuel filter, then bought and used the VCDS software to re-pressurize the fuel system. After all this I am getting the following codes (P0191 and P0087) and I think I need replace the fuel pressure regulator on the other side of the fuel rail. The car will start after sitting, run with a slight miss at idle, wont rev over 1500 rpm, will die and not restart after 5 or so minutes of running, and the glow plug light will flash the entire time. I hate throwing parts at any car so I could use someone else's opinion or experience. Thanks for any feedback.
Here is the freeze frame data from VCDS:
000401 - Fuel Pressure Sensor (G247): Implausible Signal
P0191 - 000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 2
Fault Frequency: 1
Mileage: 61249 km
Time Indication: 0
Date: 2019.14.24
Time: 09:08:18

Freeze Frame:
RPM: 1403 /min
Speed: 0.0 km/h
Lambda: 31.6 %
Pressure: 232.0 bar
Pressure: 536.0 bar
Pressure: 952.0 bar
Temperature: -2.7°C

000135 - Fuel Rail/System Pressure: Too Low
P0087 - 000 - - - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 1
Mileage: 61249 km
Time Indication: 0
Date: 2019.14.24
Time: 09:08:19

Freeze Frame:
RPM: 1541 /min
Inj. Quantity: 35.7 mg/str
(no units): 4.0
Pressure: 760.0 bar
Pressure: 120.0 bar
Temperature: -2.7°C
Tank Cont.: 52.9 l

[Keithuk]

Welcome to the forum.

How come your messing with it as it should be under warranty?

EOBD II Error Code: P0191

Fault Location:
Fuel rail pressure (FRP) sensor - range/performance problem

Possible Cause:
Wiring.
Fuel rail pressure (FRP) sensor.


VAG Error Code: 16471
EOBD II Error Code: P0087

Fault Location:
Fuel rail/system pressure too low

Possible Cause:
Power Loss.

Fuel pump (FP).
Fuel pressure regulator.
Fuel supply pipe blockage.
Mechanical fault.

Possible Solutions:
Check Measuring Values for Fuel Pressure.
Check for bent/squeezed Fuel Lines.
Check Low Fuel Pressure System for Leaks.
Check Fuel Filter & Filter in Fuel Pump.
Check the Fuel Quantity supplied by the Fuel Pump.

Special Notes:
When found in 2.0l TFSI:
Check Fuel Pressure.
When found on 2009 Audi 3.2 FSI AVS Engines, if DTC 000022/P0016 is flagged, please see TSB 15-09-04.

As taken from my Free EOBD II Error Codes software

[HeAvYfUeL]

Hi,

I had similar problems in the past. Read about it on the other forum or PM me.
http://forums.tdiclub.com/showthread.php?t=283393

[dweisel]

Check the fuel quantity regulator for metal particles.