Car: 2000 Audi TT Quattro 1.8, 180, ATC Engine



I have had issues for several months now. The car no longer boosts. Its like in limp mode. I have had numerous smoke leak tests, compression test and no leaks are ever found. I have new MAF, new diverter, new n75, new PCV..you name it I changed it. I bought the car in March 2017. It ran great after I change the turbo, diverter, n75 and borg warner turbo. I did have a vac leak once..but once that was fixed it ran excellent for a while. Then it didn't...it stopped boosting. I took it to Audi...they said it was the MAF and O2. Ok, so first I changed the MAF with an after market one...and it struggled. It felt like something was clogged.. It stuttered at boost..but still did boost. I thought it might be a faulty MAF, so I then replaced it with genuine Audi. Then I got absolutely no boost. So, I figured..ok, i'll go ahead and change the o2s. I changed them with Bosch O2s. Well, the car took off like a bat at of hell..it ran EXCELLENT and boost for like 30 miles and then it didn't.

I purchased VCDS and had P0130 code for S1B1. I then figured, maybe, just maybe I purchased a faulty O2 or the ECU was finiky and I changed it again with a genuine Audi I purchased at the dealer (I also changed the Boost pressure sensor).

Still no boost. I am not quite sure what I need to test exactly. First off here is the Autoscan I did after I commuted home today.

Monday,23,April,2018,17:54:12:41079
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 18.2.0.3 (x64) HEX-V2 CB: 0.4411.4
Data version: 20180212 DS287.0
Ross-Tech: Home


Mileage: 257260km-159853mi Repair Order:



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Chassis Type: 8N - Audi TT (1999 > 2007)
Scan: 01 02 03 08 15 17 22 35 37 45 55 56 76 77

Mileage: 257260km-159853miles
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Address 01: Engine Labels: None
Part No: 8N0 906 018 S
Component: 1.8L R4/5VT G01 0004
Coding: 06600
Shop #: WSC 01236
VCID: 41DFBB89D893CD7F3D6-513C

1 Fault Found:
16514 - Oxygen (Lambda) Sensor B1 S1
P0130 - 35-10 - Malfunction in Circuit - Intermittent
Readiness: 0000 0000

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Address 03: ABS Brakes Labels: 8N0-907-379-MK20.lbl
Part No: 8N0 907 379 C
Component: ABS/EDS 20 IE CAN V003
Coding: 13504
Shop #: WSC 01236
VCID: 3C21CA7DBF71A0976E0-4B00

No fault code found.

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Address 08: Auto HVAC Labels: 8N0-820-043.lbl
Part No: 8N0 820 043
Component: TT-KLIMAVOLLAUTOMAT D02
Coding: 00140
Shop #: WSC 01236
VCID: 678B45119677D34FD32-2580

No fault code found.

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Address 15: Airbags Labels: 8N8-909-601.lbl
Part No: 8N8 909 601
Component: Airbag Front+Seite 1005
Coding: 10102
Shop #: WSC 01236
VCID: 77AB1551C6D743CF432-5160

No fault code found.

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Address 17: Instruments Labels: 8Nx-920-xxx-17.lbl
Part No: 8N1 920 930 C
Component: KOMBI+WEGFAHRS. M73 D24
Coding: 06244
Shop #: WSC 131071
VCID: 313FEB4968335DFFCD6-4B00

No fault code found.

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Address 22: AWD Labels: 02D-900-554.lbl
Part No: 02D 900 554 B
Component: HALDEX LSC ECC 0006
VCID: 1F1B1DF10EA7DB8F6B2-4B00

No fault code found.

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Address 35: Centr. Locks Labels:. 8Nx-962-267.lbl
Part No: 8N8 962 267 A
Component: Central Lock/Alarm D04
Coding: 15884
Shop #: WSC 01236
VCID: 3FDBBD71AE67BB8F4B2-4EEA

3 Faults Found:
01366 - Opened Due to Crash Signal
35-00 - -
01559 - Drivers Door
59-10 - Can't Unlock - Intermittent
01560 - Passenger Door
59-10 - Can't Unlock - Intermittent

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Address 45: Inter. Monitor Labels: 8E0-951-177.lbl
Part No: 8N8 951 177 A
Component: Innenraumueberw. D09
Coding: 00001
Shop #: WSC 00000
VCID: 3D27C779A46BA99F59E-50D0

No fault code found.

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Address 55: Headlight Range Labels: 4B0-907-357-AUT.lbl
Part No: 4B0 907 357
Component: LEUCHTWEITEREGLER D003
Coding: 00010
Shop #: WSC 01236
VCID: 65974F196C7BC15FE1E-5160

No fault code found.

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Address 56: Radio Labels: 8D0-035-1xx-56.lbl
Part No: 8N0 035 186 A
Component: Radio D03
Coding: 00517
Shop #: WSC 01236
VCID: 2E05F035790D4207D04-4B1E

No fault code found.

End----------(Elapsed Time: 02:15, VBatt start/end: 13.6V/13.6V)-----------


I also logged block 115 032 and 033 on my morning drive when the P0130 had not yet showed up. But I don't even know what I am looking at. I can post that too if needed.

Any help on what to look for on the P0130 since the pre-cat O2 was changed barely a week ago. Is there a fuse or relay I can possible try?

 

Here is the log from the morning of 4.23.18 This is for block 032, 033 and 115. When I started this log, the P0130 was not showing yet.

I will do another on my morning drive to work and post the file here. If there is any other block I should be testing, please let me know and I will post it.