Hello
I've an Allroad 2.7t -04 and I've fault code "P0131 - Oxygen (Lambda) Sensor B1 S1: Signal too Low". Is it a bad sensor? I've checked the resistance at the sensor connector and it's 10 ohms so that's fine. The wires from the ECU to the sensor seems fine.
I logged this in VCDS. Don't know if that tells you something. Yes, this was last year but it's still the same:
I've an Allroad 2.7t -04 and I've fault code "P0131 - Oxygen (Lambda) Sensor B1 S1: Signal too Low". Is it a bad sensor? I've checked the resistance at the sensor connector and it's 10 ohms so that's fine. The wires from the ECU to the sensor seems fine.
I logged this in VCDS. Don't know if that tells you something. Yes, this was last year but it's still the same:
Code:
Saturday,22,September,2018,17:02:37:02198
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 18.2.1.5 (x64) HEX-V2 CB: 0.4411.4
Data version: 20180518 DS287.2
www.Ross-Tech.com
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Address 01: Engine (4Z7 907 551 N)
17:02:25 Group 031: Lambda Control
0.010 V Bank 1 Sensor 1 (actual)
0.450 V Bank 1 Sensor 1 (specified)
0.680 V Bank 2 Sensor 1 (actual)
0.455 V Bank 2 Sensor 1 (specified)
17:02:25 Group 032: Lambda Control (Mixture Adaptation)
9.9 % Adaptation (Idle) Bank 1 Sensor 1
-0.8 % Adaptation (Partial) Bank 1 Sensor 1
-0.8 % Adaptation (Idle) Bank 2 Sensor 1
-2.3 % Adaptation (Partial) Bank 2 Sensor 1
17:02:25 Group 033: Lambda Control
25.0 % Lambda Control Bank 1 Sensor 1
0.010 V Sensor Voltage Bank 1 Sensor 1
-16.4 % Lambda Control Bank 2 Sensor 1
0.630 V Sensor Voltage Bank 2 Sensor 1