6396 - Linear Oxygen (Lambda) Sensor B1 S1 Pump Current Trim Circuit
11-03-2018, 02:35 PM
#1
AudiWorld Junior Member
Thread Starter
6396 - Linear Oxygen (Lambda) Sensor B1 S1 Pump Current Trim Circuit
I encountered a check engine light the other day on my 2012 A7, and after scanning with VCDS, here is the output:
Is there a way to disconnect that sensor connector from the top? I can barely reach it with my hand, but I was unsuccessful disconnecting that harness.
Any advise is highly appreciated.
6396 - Linear Oxygen (Lambda) Sensor B1 S1 Pump Current Trim Circuit
P2626 00 [175] - Open
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 7
Mileage: 138754 km
Date: 2018.10.29
Time: 17:20:38
Engine speed: 1323.00 /min
Normed load value: 0.0 %
Vehicle speed: 58 km/h
Coolant temperature: 96 °C
Intake air temperature: 57 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 13.812 V
Unlearning counter according OBD: 40
Engine speed: actual: 1216 /min
MAF_ENVD: 76.25882 mg/stroke
Coolant temperature (unfiltered): 96.00 °C
Engine: operating status: PUC
T_AST_ENVD: 179.90 s
STATE_LS_ENVD[1]: 4
Readiness: 0000 0000
P2626 00 [175] - Open
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 7
Mileage: 138754 km
Date: 2018.10.29
Time: 17:20:38
Engine speed: 1323.00 /min
Normed load value: 0.0 %
Vehicle speed: 58 km/h
Coolant temperature: 96 °C
Intake air temperature: 57 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 13.812 V
Unlearning counter according OBD: 40
Engine speed: actual: 1216 /min
MAF_ENVD: 76.25882 mg/stroke
Coolant temperature (unfiltered): 96.00 °C
Engine: operating status: PUC
T_AST_ENVD: 179.90 s
STATE_LS_ENVD[1]: 4
Readiness: 0000 0000
Any advise is highly appreciated.
11-16-2018, 07:43 AM
#2
AudiWorld Junior Member
Thread Starter
I had it done after looking at is by purchasing a borescope and viewing how is attached. All i had to do is, use a small screwdriver to slide out from the retaining metal plate support where both connectors S1B2 & S1B1 are. Also, please be aware, that while the S1B1 was out, and driving the car for less than a week the passenger cat ageing showed higher than usual numbers in VCDS, like in 0.25xxx from 0.15xxx. If left alone, that would likely clog the side of catalyst converter quickly.
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