Fuel Rail/System Pressure Error

[ramaraju]

I ran a complete scan of my A6 and I found the below 2 errors. I've tried looking online but didn't understand them completely. Did anyone get these errors or know what is the fix for this?
I don't have an Check Engine light but when I read online, it said the below might cause Check Engine if not worked on.

2 Faults Found:
6237 - Fuel Rail/System Pressure
P0087 00 [096] - Too Low
Intermittent - Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 107760 km
Date: 2019.10.27
Time: 18:20:43

Engine speed: 705.00 /min
Normed load value: 9.0 %
Vehicle speed: 0 km/h
Coolant temperature: 100 °C
Intake air temperature: 87 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 14.421 V
Unlearning counter according OBD: 17
Engine speed: actual: 672 /min
MAF_ENVD: 87.15294 mg/stroke
Coolant temperature (unfiltered): 100.50 °C
FUEL_MASS_REQ_I_CTL_ENVD: 34.546875
FUP_ENVD: 40755.5310 hPa
FUP_EFP_ENVD: 4773.4 hPa

16903 - Vapor Bubble Formation in Low-Pressure Fuel Circuit
P125B 00 [040] - -
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 1
Mileage: 107760 km
Date: 2019.10.27
Time: 18:20:43

Engine speed: 701.00 /min
Normed load value: 9.0 %
Vehicle speed: 0 km/h
Coolant temperature: 100 °C
Intake air temperature: 87 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 14.523 V
Unlearning counter according OBD: 17
Engine speed: actual: 128 /min
MAF_ENVD: 0.00000 mg/stroke
Coolant temperature (unfiltered): 104.25 °C
Engine: operating status: ST
FUP_EFP_ENVD: 6819.14 hPa
Vehicle speed: actual: 0 km/h

[3g_bishi]

Which engine do you have? Also did these come up when you were low on gas? Does the vehicle run down? I would clear them, don’t let it under 1/4 tank of gas and see if it comes back.


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[ramaraju]

I should have had a signature, apologies for not providing the basic info.
The car is a 2013 Audi A6 3.0T Prestige. When I ran the scan, the fuel was low, in fact almost close to empty.
But today when I took it a workshop with full tank, they still got the issue(or maybe it was the same issue because I didn't clear them before)...The mechanic reviewed it and found that the replacement part costs $720 plus 200 for the labor to fix it. He was also nice to say, if you don't feel any lag/ no check engine light, don't worry about it...

But, are you saying that it might be due to low fuel?

[3g_bishi]

Yes I would clear it and drive it for a few if you don’t notice any loss of power or hesitation then your fine. Make sure it gets
Cleared first.


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[ramaraju]

I got them cleared. I'm driving normally but I don't see any loss of power or hesitation or never did see anything in the past. I'll definitely keep an eye on this...