Help needed, Engine Light On - Lambda Heating Errors

[PritJutla]

Hi all

For the last few days my EML light has come on. I reset it, thinking it may have been a random occurrence. Anyway the fault is back. Done a scan on VCDS and its showing fault on the lambda on both banks:

Code: Select all

Address 01: Engine        Labels:. 079-910-560-BNS1.lbl
   Part No SW: 8E1 910 560     HW: 8E1 907 560 
   Component: 4.2L V8/4V FSI     ª0080  
   Revision: --H15---    Serial number: XXXXXXXXXXXXXX
   Coding: 010C0003180F0160
   Shop #: WSC 66565 257 00032
   VCID: 63CF804CA21F315C65-8036

2 Faults Found:
000049 - Oxygen (Lambda) Sensor B1 S1: Heating Circuit 
               P0031 - 002 - Short to Ground - MIL ON
             Freeze Frame:
                    Fault Status: 11100010
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 172363 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1915 /min
                    Load: 29.0 %
                    Speed: 50.0 km/h
                    Temperature: 35.0°C
                    Temperature: 12.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 13.970 V

000055 - Oxygen (Lambda) Sensor B1 S2: Heating Circuit 
               P0037 - 002 - Short to Ground - MIL ON
             Freeze Frame:
                    Fault Status: 11100010
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 172363 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 2166 /min
                    Load: 36.1 %
                    Speed: 57.0 km/h
                    Temperature: 36.0°C
                    Temperature: 11.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 13.970 V

Readiness: 0010 1100
Address 11: Engine II        Labels:. 079-910-560-BNS2.lbl
   Part No SW: 8E1 910 560     HW: 8E1 907 560 
   Component: 4.2L V8/4V FSI     ª0080  
   Revision: --H15---    Serial number: XXXXXXXXXXXXXX
   Coding: 010C0003180F0160
   Shop #: WSC 66565 257 00032
   VCID: 63CF804CA21F315C65-8036

2 Faults Found:
000081 - Oxygen (Lambda) Sensor B2 S1: Heating Circuit 
               P0051 - 002 - Short to Ground - MIL ON
             Freeze Frame:
                    Fault Status: 11100010
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 172363 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1919 /min
                    Load: 29.0 %
                    Speed: 50.0 km/h
                    Temperature: 35.0°C
                    Temperature: 12.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 13.970 V

000086 - Oxygen (Lambda) Sensor B2 S2: Heating Circuit 
               P0056 - 004 - Malfunction / Open Circuit - MIL ON
             Freeze Frame:
                    Fault Status: 11100100
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 172363 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 2164 /min
                    Load: 36.5 %
                    Speed: 57.0 km/h
                    Temperature: 36.0°C
                    Temperature: 11.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 13.843 V`

The faults suggest the problem maybe located in an area common to all the sensors, but I have no idea where to start looking

Any ideas where to start ?

Thanks for any help

Prit

[Rw@@dy]

I’d say the sensor itself, it’s the pre cat one I think giving the fault. There’s info on here that confirms which one and side that sensor is. I had the same fault but with the post cat sensor


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