MARS4

Hi Everyone,

I have a CEL on with my 2007 RS4. I have done a bunch of searching but have not found anything helpful. Here is the VAG scan info. Car seems to run fine. Any ideas?

Thanks!

Andy


Sunday,05,August,2012,20:02:29:34710
VCDS Version: Release 11.11.3
Data version: 20120401


Address 11: Engine II Labels: 079-910-560-BNS2.lbl
Control Module Part Number: 8E1 910 560 A HW: 8E1 907 560
Component and/or Version: 4.2L V8/4V FSI ™0060
Software Coding: 01040009180F0160
Work Shop Code: WSC 08353 444 90281
VCID: 244759C7E7C0DE9
4 Faults Found:

008344 - Post-Catalyst Oxygen (Lambda) Sensor Correction; Bank 2
P2098 - 002 - Too Lean - MIL ON
Freeze Frame:
Fault Status: 11100010
Fault Priority: 0
Fault Frequency: 60
Mileage: 101994 km
Time Indication: 0

Freeze Frame:
RPM: 2788 /min
Load: 32.1 %
Speed: 107.0 km/h
Temperature: 91.0∞C
Temperature: 21.0∞C
Absolute Pres.: 1000.0 mbar
Voltage: 13.970 V

008600 - Oxygen (Lambda) Sensor B2 S1
P2198 - 002 - Signal too High (Rich) - MIL ON
Freeze Frame:
Fault Status: 11100010
Fault Priority: 0
Fault Frequency: 3
Mileage: 105204 km
Time Indication: 0

Freeze Frame:
RPM: 2964 /min
Load: 22.0 %
Speed: 58.0 km/h
Temperature: 91.0∞C
Temperature: 27.0∞C
Absolute Pres.: 1010.0 mbar
Voltage: 13.970 V

001073 - Warm Up Catalyst; Bank 2
P0431 - 002 - Efficiency Below Threshold - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100010
Fault Priority: 0
Fault Frequency: 2
Mileage: 105858 km
Time Indication: 0

Freeze Frame:
RPM: 1161 /min
Load: 41.9 %
Speed: 15.0 km/h
Temperature: 97.0∞C
Temperature: 45.0∞C
Absolute Pres.: 1000.0 mbar
Voltage: 13.716 V

008756 - Oxygen (Lambda) Sensor B2 S1
P2234 - 004 - Signal Shorted to Heater Circuit
Freeze Frame:
Fault Status: 01100100
Fault Priority: 0
Fault Frequency: 6
Mileage: 105882 km
Time Indication: 0

Freeze Frame:
RPM: 3180 /min
Load: 16.5 %
Speed: 62.0 km/h
Temperature: 93.0∞C
Temperature: 40.0∞C
Absolute Pres.: 990.0 mbar
Voltage: 13.716 V

ELEVENS

Different exhaust system components?

MARS4

The exhaust is stock. I did remove the vacum lines from the exhaust flaps so they are open all the time, however this CEL was on before I did that work.

Andy

ELEVENS

It says that the heater circuit is shorted to one of the O2 sensors so that's probably the problem. I'd check down under first for broken wire insulation, chafing, etc. Without a heater, it will be slow to respond and/or inaccurate, especially if the exhaust gases alone can't keep it hot enough. Also make sure the vacuum hoses that you took off the exhaust flap solenoids are plugged. These cars are very sensitive to vacuum leaks. Good luck!