Can anyone direct to where the O2 sensors mate up in the engine bay? I have searched, but no avail.
The good news is your in the right place for questions. The other news is you could search for the next 6 months and not find the 02 connections in the upper motor bay. They are located on the passenger side of the transmission. They are up close to the top of the transmission.
That’s what I had read. Just wanted to confirm. So there is no way to test them with a multimeter from above 
underneath only. Kind of a pain.
Sucks butt… Guess I gotta get it on a lift
If you couldn’t locate them, do you think you’re competent enough to test them…
What problem are you having?
Ass… I need to test the voltage… Flipping codes on both passenger bank O2s…
Yes I am…voltage to make sure they are turning on? you may also need to check resistance of the heater circuit…
what are the codes?
I get those codes too, here and there, heater circuit, 02 sensor! P2198,p171 and something 056!
Marcus,
Do you mind if I share your O2 codes?
Once a resolution has been found, this may be able to help someone else some day.
Sure. Share away. Any insight would be great. I got a lift for Friday to check it out with more than just a visual inspection like I did yesterday. I just really miss my house and garage and the ability to do my own work w/o having to borrow other folks shit. August 1 can’t come fast enough.
Address 01: Engine Labels: 079-910-560-BNS1.lbl
Part No SW: 8E1 910 560 A HW: 8E1 907 560
Component: STG1 SC/V4 JHM ª0060
1 Fault Found:
004372 - Oxygen (Lambda) Sensor; B1 S2
P1114 - 008 - Internal Resistance too High - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 123669 km
Time Indication: 0
Freeze Frame:
RPM: 2820 /min
Load: 40.0 %
Speed: 108.0 km/h
Temperature: 51.0°C
Temperature: 10.0°C
Absolute Pres.: 800.0 mbar
Voltage: 13.843 V
Readiness: 0000 0000
Address 11: Engine II Labels: 079-910-560-BNS2.lbl
Part No SW: 8E1 910 560 A HW: 8E1 907 560
Component: STG1 SC/V4 JHM ª0060
Revision: 57H13— Serial number: XXXXXXXXXXXXXX
Coding: 01040009180F0160
Shop #: WSC 05136 444 53285
VCID: 2447AFD4E7CD8D012A7-8071
No fault code found.
LOG AT 77155:
Address 01: Engine Labels: 079-910-560-BNS1.lbl
Part No SW: 8E1 910 560 A HW: 8E1 907 560
Component: STG1 SC/V4 JHM ª0060
2 Faults Found:
012902 - Oxygen (Lambda) Sensor B1 S1
P3266 - 008 - Internal Resistance Implausible - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 2
Reset counter: 255
Mileage: 123895 km
Time Indication: 0
Freeze Frame:
RPM: 3962 /min
Load: 18.8 %
Speed: 96.0 km/h
Temperature: 55.0°C
Temperature: 30.0°C
Absolute Pres.: 800.0 mbar
Voltage: 13.208 V
000304 - Oxygen (Lambda) Sensor B1 S1
P0130 - 001 - Malfunction in Circuit - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 2
Reset counter: 255
Mileage: 123895 km
Time Indication: 0
Freeze Frame:
RPM: 2919 /min
Load: 16.9 %
Speed: 77.0 km/h
Temperature: 57.0°C
Temperature: 30.0°C
Absolute Pres.: 800.0 mbar
Voltage: 13.589 V
Readiness: 0000 0000
Address 11: Engine II Labels: 079-910-560-BNS2.lbl
Part No SW: 8E1 910 560 A HW: 8E1 907 560
Component: STG1 SC/V4 JHM ª0060
Revision: 57H13— Serial number: XXXXXXXXXXXXXX
Coding: 01040009180F0160
Shop #: WSC 05136 444 53285
VCID: 2447AFD4E7CD8D012A7-8071
No fault code found.
LOG AT 77410:
Address 01: Engine Labels: 079-910-560-BNS1.lbl
Part No SW: 8E1 910 560 A HW: 8E1 907 560
Component: STG1 SC/V4 JHM ª0060
Revision: 57H13— Serial number: XXXXXXXXXXXXXX
Coding: 01040009180F0160
Shop #: WSC 05136 444 53285
VCID: 2447AFD4E7CD8D012A7-8071
6 Faults Found:
008753 - Oxygen (Lambda) Sensor B1 S1
P2231 - 004 - Signal Shorted to Heater Circuit - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 124454 km
Time Indication: 0
Freeze Frame:
RPM: 2778 /min
Load: 29.8 %
Speed: 54.0 km/h
Temperature: 48.0°C
Temperature: 21.0°C
Absolute Pres.: 810.0 mbar
Voltage: 13.208 V
008343 - Post-Catalyst Oxygen (Lambda) Sensor Correction; Bank 1
P2097 - 001 - Too Rich
Freeze Frame:
Fault Status: 01100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 124507 km
Time Indication: 0
Freeze Frame:
RPM: 2320 /min
Load: 36.1 %
Speed: 61.0 km/h
Temperature: 51.0°C
Temperature: 24.0°C
Absolute Pres.: 800.0 mbar
Voltage: 13.716 V
008785 - Oxygen (Lambda) Sensor B1 S1: Negative Lead
P2251 - 004 - Open Circuit - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 124554 km
Time Indication: 0
Freeze Frame:
RPM: 1874 /min
Load: 20.4 %
Speed: 49.0 km/h
Temperature: 43.0°C
Temperature: 12.0°C
Absolute Pres.: 800.0 mbar
Voltage: 13.843 V
000304 - Oxygen (Lambda) Sensor B1 S1
P0130 - 001 - Malfunction in Circuit - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 124554 km
Time Indication: 0
Freeze Frame:
RPM: 1874 /min
Load: 20.4 %
Speed: 49.0 km/h
Temperature: 43.0°C
Temperature: 12.0°C
Absolute Pres.: 800.0 mbar
Voltage: 13.843 V
012902 - Oxygen (Lambda) Sensor B1 S1
P3266 - 008 - Internal Resistance Implausible
Freeze Frame:
Fault Status: 01101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 124579 km
Time Indication: 0
Freeze Frame:
RPM: 768 /min
Load: 29.8 %
Speed: 0.0 km/h
Temperature: 40.0°C
Temperature: 30.0°C
Absolute Pres.: 810.0 mbar
Voltage: 13.970 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: 124585 km
Time Indication: 0
Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 65.0°C
Temperature: 48.0°C
Absolute Pres.: 800.0 mbar
Voltage: 11.684 V
Readiness: 0000 0000
Address 11: Engine II Labels: 079-910-560-BNS2.lbl
Part No SW: 8E1 910 560 A HW: 8E1 907 560
Component: STG1 SC/V4 JHM ª0060
Revision: 57H13— Serial number: XXXXXXXXXXXXXX
Coding: 01040009180F0160
Shop #: WSC 05136 444 53285
VCID: 2447AFD4E7CD8D012A7-8071
3 Faults Found:
008345 - Post-Catalyst Oxygen (Lambda) Sensor Correction; Bank 2
P2099 - 001 - Too Rich
Freeze Frame:
Fault Status: 01100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 124454 km
Time Indication: 0
Freeze Frame:
RPM: 2800 /min
Load: 32.5 %
Speed: 55.0 km/h
Temperature: 46.0°C
Temperature: 21.0°C
Absolute Pres.: 810.0 mbar
Voltage: 13.335 V
008599 - Oxygen (Lambda) Sensor B2 S1
P2197 - 001 - Signal too Low (Lean)
Freeze Frame:
Fault Status: 01100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 124478 km
Time Indication: 0
Freeze Frame:
RPM: 1252 /min
Load: 37.6 %
Speed: 48.0 km/h
Temperature: 39.0°C
Temperature: 15.0°C
Absolute Pres.: 800.0 mbar
Voltage: 13.716 V
004416 - Oxygen (Lambda) Sensor; B2 S2
P1140 - 008 - Internal Resistance too High - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 124509 km
Time Indication: 0
Freeze Frame:
RPM: 2894 /min
Load: 21.2 %
Speed: 111.0 km/h
Temperature: 88.0°C
Temperature: 23.0°C
Absolute Pres.: 800.0 mbar
Voltage: 13.716 V
This code leads me to believe there may be an issue with the harness:
008785 - Oxygen (Lambda) Sensor B1 S1: Negative Lead
P2251 - 004 - Open Circuit - Intermittent
Mileage: 124554 km
Great job jake!