phistration

Thanks...
I wil go through that process in the morning and see what I come up with.

MP4.2+6.0

As indicated before, I doubt it. One HPFP on each head. Thus unless an oblong meteor strikes your Audi just right in the hood, really unlikely both go or start getting flaky at once. As in, you do not have codes showing only one side of the motor (aka a bank) is lean, experiencing misfires or with other side specific issues that I might expect for one of the HPFP's. But...both are fed from the tank pumps...

phistration

I ran through that procedure and found that I am just outside of the criteria for 106~ 56%. I also ran another scan and this is what I came up with...
Chassis Type: 4E (4L0)
Scan: 01 02 03 05 06 07 08 09 0E 0F 11 31 15 16 17 19 28 34 36 37
38 42 46 47 4F 52 53 55 56 61 62 65 67 6C 72 76 77

Mileage: 294210km-182813miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
06-Seat Mem. Pass -- Status: OK 0000
07-Control Head -- Status: Malfunction 0010
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: OK 0000
0E-Media Player 1 -- Status: OK 0000
0F-Digital Radio -- Status: Malfunction 0010
11-Engine II -- Status: Malfunction 0010
31-Engine other -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
28-HVAC, Rear -- Status: OK 0000
34-Level Control -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
37-Navigation -- Status: OK 0000
38-Roof Electronics -- Status: Malfunction 0010
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: Malfunction 0010
4F-Centr. Electr. II -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: Malfunction 0010
55-Headlight Range -- Status: OK 0000
56-Radio -- Status: OK 0000
61-Battery Regul. -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
65-Tire Pressure -- Status: OK 0000
67-Voice Control -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
76-Park Assist -- Status: OK 0000
77-Telephone -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine Labels: Redir Fail!
Part No SW: 4E0 910 552 A HW: 4E0 907 552
Component: 5.2L V10/4V FSI ª0040
Revision: 5AH11--- Serial number: AUX3Z0F7705339
Coding: 01060009190F0160
Shop #: WSC 08212 444 83316
VCID: 2019E316C6CE6287BE5-8074

3 Faults Found:
000135 - Fuel Rail/System Pressure
P0087 - 008 - Too Low - MIL ON
Freeze Frame:
Fault Status: 11101000
Fault Priority: 0
Fault Frequency: 3
Reset counter: 255
Mileage: 294043 km
Time Indication: 0
Date: 2018.11.06
Time: 07:34:23

Freeze Frame:
RPM: 2413 /min
Load: 50.2 %
Speed: 109.0 km/h
Temperature: 93.0°C
Temperature: 15.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.716 V

000135 - Fuel Rail/System Pressure
P0087 - 002 - Too Low - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 6
Reset counter: 255
Mileage: 294044 km
Time Indication: 0
Date: 2018.11.06
Time: 07:34:24

Freeze Frame:
RPM: 2519 /min
Load: 81.5 %
Speed: 100.0 km/h
Temperature: 92.0°C
Temperature: 9.0°C
Absolute Pres.: 980.0 mbar
Voltage: 13.843 V

006435 - Please Check DTC Memory of ECU Number 2
P1923 - 008 -
Freeze Frame:
Fault Status: 01101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 294216 km
Time Indication: 0
Date: 2018.11.09
Time: 07:40:52

Freeze Frame:
RPM: 128 /min
Load: 68.2 %
Speed: 0.0 km/h
Temperature: 11.0°C
Temperature: 11.0°C
Absolute Pres.: 980.0 mbar
Voltage: 9.779 V

Readiness: 0000 0000

Address 11: Engine II Labels: Redir Fail!
Part No SW: 4E0 910 552 A HW: 4E0 907 552
Component: 5.2L V10/4V FSI ª0040
Revision: 5AH11--- Serial number: AUX3Z0F7705339
Coding: 01060009190F0160
Shop #: WSC 08212 444 83316
VCID: 2019E316C6CE6287BE5-8074

3 Faults Found:
000768 - Random/Multiple Cylinder Misfire Detected
P0300 - 001 - - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 294147 km
Time Indication: 0
Date: 2018.11.08
Time: 07:45:50

Freeze Frame:
RPM: 2551 /min
Load: 71.7 %
Speed: 69.0 km/h
Temperature: 76.0°C
Temperature: 12.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.589 V

000774 - Cylinder 6
P0306 - 001 - Misfire Detected - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 294147 km
Time Indication: 0
Date: 2018.11.08
Time: 07:45:50

Freeze Frame:
RPM: 2551 /min
Load: 71.7 %
Speed: 69.0 km/h
Temperature: 76.0°C
Temperature: 12.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.589 V

000776 - Cylinder 8
P0308 - 001 - Misfire Detected - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 294147 km
Time Indication: 0
Date: 2018.11.08
Time: 07:45:50

Freeze Frame:
RPM: 2551 /min
Load: 71.7 %
Speed: 69.0 km/h
Temperature: 76.0°C
Temperature: 12.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.589 V

ScottCNelson

Being on the edge of low pressure would explain why the problem shows up intermittently and would be consistent with worn (not broken) HPFPS and/or cam followers. The cam followers are relative cheap and very easy to change, so I would consider doing them before the HPFPs.

https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

phistration

Amazon only has one follower in stock which i ordered. I will order another when they get more in stock. I will put the one in the side that has the misfires. I am also going to chainge the fuel filter. We will see what things look like after that....

ScottCNelson

Here's the proc to remove the HPFPs to get at the cam followers. FYI, before removing, disconnect both HPFPs electrical connectors and run the car at idle for ten seconds to depressurize the rails.

phistration

Thanks I was just looking for that! Fuel filter changed...slight improvement but basically the same...follower will be in soon...

phistration

So apparently after changing the fuel filter AND clearing the codes all is well. I didn't even get a chance to change the cam followers yet. I am just happy it is all good now. Based on what I believed to be the date code that was the original filter with 183k on it. It was past time...

Jack88

Well, if all seems well, then enjoy it and be happy!

phistration

Well after being fine for a while it is back. Any suggestions? It is going to the shop Friday but if I an figure it out before then that would be great.