S4 Engine management light on

JS4

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Hi All,

My Engine management cam on this morning as I was driving to work. So in the work carpark I plugged her into VCDS-Lite and came with the below report. The car has had a remap but has been fine since I bought it 3 months ago, the oil levels are all good also.

Any ideas, I hate driving it if i know something is wrong.

Code:
VCDS-Lite Version: Release 1.0
Monday, 18 July 2011, 08:12:33:0


Chassis Type: 8D - Audi A4 B5
Scan: 01,02,03,08,15,16,17,25,35,37,45,55,56,57,67,75,76,77
 
-------------------------------------------------------------------------------
Address 01: Engine       Labels: 078-907-551-AZA.LBL
   Controller: 8D0 907 551 G
   Component: 2.7l V6/5VT         0002
   Coding: 10711
   Shop #: WSC 63251
   WAUZZZ8DZ1A147728     AUZ7Z0A1797577
1 Fault Found:
17539 - Oxygen (Lambda) Sensor; B2 S1: Internal Resistance too High
            P1131 - 35-10 - - - Intermittent
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes       Labels: 8D0-907-389.LBL
   Controller: 8D0 907 389 E
   Component: ABS/ESP allrad      D56
   Coding: 04395
   Shop #: WSC 06435
No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC       Labels: 8D0-907-389.LBL
   Controller:    ö8
   Note: Excessive Comm Errors

-------------------------------------------------------------------------------
Address 15: Airbags       Labels: 8D0-959-655-AI8.LBL
   Controller: 8D0 959 655 J
   Component: Airbag Front+Seite 2001
   Coding: 01106
   Shop #: WSC 63251
No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments       Labels: 8D0-920-xxx-17.LBL
   Controller: 8D0 920 981 A
   Component: B5-KOMBIINSTR. VDO D12 
   Coding: 00464
   Shop #: WSC 10001
   WAUZZZ8DZ1A147728     AUZ7Z0A1797577
No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer       Labels: None
   Controller: Bit teA dre ssv
   Component: e 17 eingeben          
No Faults Found
  or DTCs not supported by controller
  or a communication error ocurred

-------------------------------------------------------------------------------
Address 35: Centr. Locks       Labels: 8D0-862-257.LBL
   Controller: 8D0 862 257 E
   Component: CV-Pump, Alarm, RC  D17
   Coding: 15178
   Shop #: WSC 63251
9 Faults Found:
01367 - Central Locking Pump Run Time Exceeded (Likely Leak)
            35-00 - -
01371 - Alarm triggered by Door Contact Switch; Driver's Side
            35-00 - -
01374 - Alarm triggered by Terminal 15
            35-00 - -
01370 - Alarm triggered by Interior Monitoring
            35-00 - -
01369 - Alarm triggered by Hood Switch
            35-00 - -
01368 - Alarm triggered by Luggage Compartment Switch
            35-00 - -
00991 - Interior Lights
            28-00 - Short to Plus
00955 - Key 1
            09-00 - Adaptation Limit Surpassed
00956 - Key 2
            09-00 - Adaptation Limit Surpassed

-------------------------------------------------------------------------------
Address 45: Inter. Monitor       Labels: 4B0-951-173.LBL
   Controller: 4B0 951 173 
   Component: Innenraumueberw.    D03
   Coding: 00102
   Shop #: WSC 63351
No fault code found.

-------------------------------------------------------------------------------
Address 55: Xenon Range       Labels: 4B0-907-357-AUT.LBL
   Controller: 4B0 907 357 
   Component: LEUCHTWEITEREGLER  D004
   Coding: 00012
   Shop #: WSC 63351
No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio       Labels: 8D0-035-1xx-56.LBL
   Controller: 4B0 035 186 E
   Component:  Radio             0001
   Coding: 00013
   Shop #: WSC 63251
No fault code found.

End   --------------------------------------------------------------------------------------------------
 
1 Fault Found: 17539 - Oxygen (Lambda) Sensor; B2 S1: Internal Resistance too High P1131 - 35-10 - - - Intermittent

Thats the important bit.

One of your lambda sensors has failed.
 
Great, another £150 the B2 S1 sensors are on the down pipes as well arn't they? Are they particularly awkward to get to?
 
B2 is Bank 2
S1 is sensor 1 (the top one, up near the turbo)

Not sure which side of the engine is bank two though. I guess you can work it out by unplugging one side, and seeing if the fault code changes. IE if you unplug bank one by mistake its going to pop up a new code.

The sensors are available direct from Bosch for a lot less than £150. I think its one of these you need: Just Lambda, Suppliers of zirconia and titania lambda sensors by post
 
Thanks Aragorn, the master of all things Audi.