Location Fuel Pressure Regulator 3.0 TDI BiTurbo, error 18728

[enolaer]

Hello there,

since a few weeks my Audi A6 C& 3.0 TDI BiTurbo show me a check engine error light. I checked and reset it with VCDS, but the error still coming after riding a few miles.

The Ross-Tech wiki said to check or resplace the N276, but there can i find this regulator? Or is there is something else i can do/check?

thanks!

Error:

1 FaultFound:18728 - NOxSensor 1 Bank 1 P220100 [237] - Implausible Signal MIL ON - Confirmed - Tested Since Memory Clear Freeze Frame: Fault Status: 00000001 Fault Priority: 2 Fault Frequency: 1 Mileage: 105076 km Date: 2018.10.04 Time: 13:24:38 Engine speed: 1151.00 /min Normed load value: 0.0 % Vehicle speed: 60 km/h Coolant temperature: 88 °C Intake air temperature: 16 °C Ambient air pressure: 1030 mbar Voltage terminal 30: 13.140 V Unlearning counter according OBD: 40 Exh r N Ox Pres Comp NSC Ds: -43 ppm NOx-Sensor 1: oxygen concentration: 0.20095 O2 sensor 1: bank 1: voltage raw value O2 signal: 1226.8 mV O2 sensor 1 bank 1: adjusted oxygen value: 0.00420 EGR solenoid valve: actual value: 100.00 % Mean injection quantity: 0.00 mg/stroke Exhaust gas temperature sensor 1: 209.4 °C

Wiki:
18728/P2296/008854 - Fuel Pressure Regulator Valve (N276): Short to Plus Possible Symptoms

• Malfunction Indicator Light (MIL) ON

Possible Causes

• Wiring and/or connections faulty
• Fuel Pressure Regulator Valve (N276) defective

Possible Solutions

• Check wiring and connections
• Check / Replace N276

Special Notes

• On some engines, the N276 may be refered to as the N290 in the factory wiring diagram.

1 FaultFound:

18728 - NOxSensor 1 Bank 1
P220100 [237] - Implausible Signal
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 105076 km
Date: 2018.09.25
Time: 13:24:38

Engine speed: 1151.00 /min
Normed load value: 0.0 %
Vehicle speed: 60 km/h
Coolant temperature: 88 °C
Intake air temperature: 16 °C
Ambient air pressure: 1030 mbar
Voltage terminal 30: 13.140 V
Unlearning counter according OBD: 40
Exh r N Ox Pres Comp NSC Ds: -43 ppm
NOx-Sensor 1: oxygen concentration: 0.20095
O2 sensor 1: bank 1: voltage raw value O2 signal: 1226.8 mV
O2 sensor 1 bank 1: adjusted oxygen value: 0.00420
EGR solenoid valve: actual value: 100.00 %
Mean injection quantity: 0.00 mg/stroke
Exhaust gas temperature sensor 1: 209.4 °C

[Elansear]

Page 24. http://www.volkspage.net/technik/ssp/ssp/SSP_350.pdf. Took 20 seconds to google. Hope it assists.