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Hi everyone. I have a 2008 VR6 4Motion Sedan with 193,000 miles. This has been a great vehicle for the last 8 years with minimal issues until now. A few weeks ago the CEL came on and the engine was idling and running rough. A scan with the VCDS revealed the following codes:

8 Faults Found:
008756 - Oxygen (Lambda) Sensor B2 S1
P2234 - 004 - Signal Shorted to Heater Circuit - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100100
Fault Priority: 0
Fault Frequency: 55
Reset counter: 255
Mileage: 306674 km
Time Indication: 0
Date: 2022.09.14
Time: 06:23:24

Freeze Frame:
RPM: 966 /min
Load: 58.0 %
Speed: 8.0 km/h
Temperature: 23.0°C
Temperature: 19.0°C
Absolute Pres.: 980.0 mbar
Voltage: 14.224 V

001072 - Catalyst System; Bank 2
P0430 - 002 - Efficiency Below Threshold - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 309347 km
Time Indication: 0
Date: 2022.10.14
Time: 09:13:33

Freeze Frame:
RPM: 2149 /min
Load: 52.1 %
Speed: 106.0 km/h
Temperature: 84.0°C
Temperature: 21.0°C
Absolute Pres.: 980.0 mbar
Voltage: 13.716 V

000136 - Fuel Rail/System Pressure
P0088 - 001 - Too High - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 310340 km
Time Indication: 0
Date: 2022.11.02
Time: 05:58:23

Freeze Frame:
RPM: 1177 /min
Load: 69.0 %
Speed: 0.0 km/h
Temperature: 14.0°C
Temperature: 15.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.351 V

000136 - Fuel Rail/System Pressure
P0088 - 004 - Too High - MIL ON
Freeze Frame:
Fault Status: 11100100
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 310379 km
Time Indication: 0
Date: 2022.11.02
Time: 06:25:10

Freeze Frame:
RPM: 703 /min
Load: 27.8 %
Speed: 0.0 km/h
Temperature: 92.0°C
Temperature: 13.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.970 V

000768 - Random/Multiple Cylinder Misfire Detected
P0300 - 008 - - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 310386 km
Time Indication: 0
Date: 2022.11.02
Time: 18:39:47

Freeze Frame:
RPM: 1122 /min
Load: 77.2 %
Speed: 0.0 km/h
Temperature: 24.0°C
Temperature: 23.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.224 V

000774 - Cylinder 6
P0306 - 008 - Misfire Detected - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 310386 km
Time Indication: 0
Date: 2022.11.02
Time: 18:40:32

Freeze Frame:
RPM: 731 /min
Load: 31.8 %
Speed: 0.0 km/h
Temperature: 33.0°C
Temperature: 23.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.097 V

000772 - Cylinder 4
P0304 - 008 - Misfire Detected - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 310386 km
Time Indication: 0
Date: 2022.11.02
Time: 18:40:32

Freeze Frame:
RPM: 731 /min
Load: 31.8 %
Speed: 0.0 km/h
Temperature: 33.0°C
Temperature: 23.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.097 V

001290 - Cold Start Idle Air Control System
P050A - 002 - Malfunction - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 310432 km
Time Indication: 0
Date: 2022.11.04
Time: 06:08:26

Freeze Frame:
RPM: 939 /min
Load: 74.9 %
Speed: 0.0 km/h
Temperature: 9.0°C
Temperature: 10.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.224 V

A local (non VW) garage told me the O2 sensor was the culprit and would be the cure for everything. After some research on Passat World, I figured out I needed to replace the LH upstream O2 sensor. I installed a new Bosch O2 sensor, started the car and it idled fine and the CEL was still on. A quick drive revealed at about 2000 RPM the engine started running rough and stumbling, at around 3000 RPM the CEL started flashing. Another scan showed this:

Address 01: Engine (BLV) Labels: 03H-906-032-BLV.clb
Part No SW: 03H 906 032 BR HW: 03H 906 032 AB
Component: P3.6-FSI-LEV2 G 1411
Revision: 5GH04--- Serial number: VWZCZ000000000
Coding: 0000175
Shop #: WSC 00028 028 00001
VCID: 73E5940E12D8B1154E-8026
VINID: 9E69D49470D32488001C4144083A6085C7

9 Faults Found:
000135 - Fuel Rail/System Pressure
P0087 - 002 - Too Low - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100010
Fault Priority: 0
Fault Frequency: 19
Reset counter: 255
Mileage: 310526 km
Time Indication: 0
Date: 2022.11.04
Time: 20:38:59

Freeze Frame:
RPM: 914 /min
Load: 39.2 %
Speed: 0.0 km/h
Temperature: 88.0°C
Temperature: 54.0°C
Absolute Pres.: 980.0 mbar
Voltage: 13.208 V

000768 - Random/Multiple Cylinder Misfire Detected
P0300 - 001 - - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 0
Fault Frequency: 3
Reset counter: 255
Mileage: 310527 km
Time Indication: 0
Date: 2022.11.05
Time: 06:08:29

Freeze Frame:
RPM: 916 /min
Load: 71.0 %
Speed: 3.0 km/h
Temperature: 22.0°C
Temperature: 21.0°C
Absolute Pres.: 980.0 mbar
Voltage: 14.224 V

000774 - Cylinder 6
P0306 - 001 - Misfire Detected - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100001
Fault Priority: 0
Fault Frequency: 2
Reset counter: 255
Mileage: 310527 km
Time Indication: 0
Date: 2022.11.05
Time: 06:08:56

Freeze Frame:
RPM: 2156 /min
Load: 61.9 %
Speed: 42.0 km/h
Temperature: 29.0°C
Temperature: 20.0°C
Absolute Pres.: 980.0 mbar
Voltage: 14.097 V

000772 - Cylinder 4
P0304 - 001 - Misfire Detected - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100001
Fault Priority: 0
Fault Frequency: 2
Reset counter: 255
Mileage: 310527 km
Time Indication: 0
Date: 2022.11.05
Time: 06:08:56

Freeze Frame:
RPM: 2156 /min
Load: 61.9 %
Speed: 42.0 km/h
Temperature: 29.0°C
Temperature: 20.0°C
Absolute Pres.: 980.0 mbar
Voltage: 14.097 V

000135 - Fuel Rail/System Pressure
P0087 - 008 - Too Low - MIL ON
Freeze Frame:
Fault Status: 11101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 310529 km
Time Indication: 0
Date: 2022.11.05
Time: 06:11:54

Freeze Frame:
RPM: 2647 /min
Load: 74.9 %
Speed: 50.0 km/h
Temperature: 62.0°C
Temperature: 16.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.843 V

000372 - Fuel Trim; Bank 2
P0174 - 001 - System Too Lean - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 2
Reset counter: 255
Mileage: 310572 km
Time Indication: 0
Date: 2022.11.05
Time: 06:38:08

Freeze Frame:
RPM: 637 /min
Load: 29.0 %
Speed: 0.0 km/h
Temperature: 69.0°C
Temperature: 24.0°C
Absolute Pres.: 980.0 mbar
Voltage: 13.970 V

001290 - Cold Start Idle Air Control System
P050A - 002 - Malfunction
Freeze Frame:
Fault Status: 01100010
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 310619 km
Time Indication: 0
Date: 2022.11.08
Time: 17:49:16

Freeze Frame:
RPM: 769 /min
Load: 74.5 %
Speed: 0.0 km/h
Temperature: 10.0°C
Temperature: 11.0°C
Absolute Pres.: 990.0 mbar
Voltage: 13.970 V

000773 - Cylinder 5
P0305 - 008 - Misfire Detected - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 310619 km
Time Indication: 0
Date: 2022.11.08
Time: 17:50:19

Freeze Frame:
RPM: 769 /min
Load: 24.3 %
Speed: 0.0 km/h
Temperature: 21.0°C
Temperature: 11.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.097 V

000771 - Cylinder 3
P0303 - 001 - Misfire Detected
Freeze Frame:
Fault Status: 01100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 310622 km
Time Indication: 0
Date: 2022.11.14
Time: 19:11:59

Freeze Frame:
RPM: 3034 /min
Load: 89.8 %
Speed: 42.0 km/h
Temperature: 85.0°C
Temperature: 3.0°C
Absolute Pres.: 990.0 mbar
Voltage: 14.097 V

Any technical help would be greatly appreciated. Thanks in advance!
 

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2013 B7 2.5 L
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44 Posts
I think you want to be looking at the cam follower for the high pressure fuel pump. It’s a problem on earlier years, and several people with 08s have experienced issues.

 
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