B8 (2011) S4 APR Mods Check Engine Code

[YBYJAP]

Hello Community.

B8 (2011) S4 Here.

7-10 days ago I had a Mercracing SC heat exchanger installed and the APR SC crank pulley. I also have the APR SC pulley, intake, TCU update and other mods. Remote update from APR to get everything in synch. After driving a bit, I am now seeing a check engine light. I have also contacted APR wondering if the update is coincidental or causational. Ran Ross-Tech VAG-COM and getting the following readout (fyi, I ordered this vehicle from the factory and just hit 62,000 miles on the clock, so thoughts are appreciated):

Wednesday,21,August,2024,19:07:31:26148
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 24.7.0.0 (x64) HEX-NET2 CB: 0.4643.5
Data version: 20240715 DS356.3
www.Ross-Tech.com


VIN: WAUBGAFL0BA120127 License Plate: 853 BBMS
Mileage: 100100km-62199mi Repair Order:



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Address 01: Engine Labels: 06E-907-551-CAK.clb
Control Module Part Number: 8K0 907 551 B HW: 8K0 907 551 A
Component and/or Version: 3.0T SIMOS84 H07 0002
Software Coding: 0104000A240F0128
Work Shop Code: WSC 06325 000 00000
ASAM Dataset: EV_ECM30TFS0218K0907551B 001002 (AU48)
ROD: EV_ECM30TFS0218K0907551B.rod
VCID: B032FDC51AA5B1CA6F3-80E4
1 Fault Found:

6400 - Linear Oxygen (Lambda) Sensor B2 S1 Pump Current Trim Circuit
P2629 00 [11101101] - Open
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Priority: 2
Fault Frequency: 3
Mileage: 100068 km
Date: 2024.08.21
Time: 13:29:30

Engine RPM: 1906.00 /min
Normed load value: 0.0 %
Vehicle speed: 51 km/h
Coolant temperature: 77 C
Intake air temperature: 27 C
Ambient air pressure: 990 mbar
Voltage terminal 30: 13.913 V
Unlearning counter according OBD: 40
Engine speed: actual: 1984 /min
MAF_ENVD: 108.94117 mg/stroke
Coolant temperature (unfiltered): 95.3 C
Engine: operating status: PUC
T_AST_ENVD: 257.00 s
STATE_LS_ENVD[2]: 4


Readiness: 0000 0000

[Jjennings91]

Bad O2 sensor? If it is reading open either the sensor went bad or you have a cut wire somewhere on that circuit.