Ok so I finally decided to read my car before I went out buying stuff and this is what it found...

So I figure I need a new O2 Sensor, but what about these three other faults. Please help

VAG-COM Version: Release 311.2-N


Chassis Type: 8D - Audi A4 B5
Scan: 01,02,03,08,15,17,25,35,45,55,56

Address 01 -------------------------------------------------------
Controller: 8D0 907 557 P
Component: 1.8L R4/5VT MOTR AT D04
Coding: 06251
Shop #: WSC 06335
4 Faults Found:
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
17956 - Boost Pressure Regulation Valve (N75): Open Circuit
P1548 - 35-00 - -
17091 - Transmission Range Sensor (F125): Signal too Low
P0707 - 35-00 - -
16806 - Main Catalyst: Bank 1: Efficiency Below Threshold
P0422 - 35-10 - - - Intermittent
Readiness: 0000 0000

Address 02 -------------------------------------------------------
Controller: 8D0 927 156 BN
Component: AG5 01V 1.8l5VT USA 8508
Coding: 00000
Shop #: WSC 00000
1 Fault Found:
00526 - Brake Light Switch-F
27-00 - Implausible Signal

Address 03 -------------------------------------------------------
Controller: 8E0 614 111 A
Component: ABS/EDS 5.3 QUATTRO D00
Coding: 0273004284
Shop #: BB 24334
No fault code found.

Address 08 -------------------------------------------------------
Controller: 8L0 820 043 D
Component: A4 KLIMAVOLLAUTOMAT_D75
Coding: 04142
Shop #: WSC 06335
No fault code found.

Skipping Address 15-Airbags

Address 17 -------------------------------------------------------
Controller: 8D0 919 910 P
Component: B5-KOMBIINSTR. VDO D05
Coding: 02242
Shop #: WSC 19411
No fault code found.

Address 35 -------------------------------------------------------
Controller: 8L0 862 257 N
Component: CV-Pump D10
Coding: 16232
Shop #: WSC 06335
2 Faults Found:
01370 - Alarm triggered by Interior Monitoring
35-00 - -
00956 - Key 2
09-00 - Adaptation Limit Surpassed

Address 45 -------------------------------------------------------
Controller: 4B0 951 173
Component: Innenraumueberw. D03
Coding: 00101
Shop #: WSC 06335
No fault code found.

Address 56 -------------------------------------------------------
Controller: 4B0 035 186 A
Component: Radio D02
Coding: 00207
Shop #: WSC 40815
2 Faults Found:
00854 - Radio Display Output in dash Panel insert
49-00 - No Communications
00855 - Connection to CD changer
49-10 - No Communications - Intermittent

End -------------------------------------------------------

 

 

17956 - Boost Pressure Regulation Valve (N75): Open Circuit Self explainatory. Wastegate regulator may not be working. Clear the code and see if it returns.


17091 - Transmission Range Sensor (F125): Signal too Low
Through the multi-function Transmission Range (TR) program switch -F125- at the transmission, the Engine Control Module (ECM) recognizes whether a drive range is selected (selector lever in 2/3/4/R/D) or not (selector lever in P or N)

Clear and see if it returns

00956 - Key 2
Key not matched
Key operated more than 200 times while out of range


If your remote key works, clear the code. If your key doesn't work, then reprogram it.

 

I would clear everything and see what comes back within a week.

 

16806 code is not an oxygen sensor, but a failing catalytic converter. Is yours OEM or is it an aftermarket replacement? Clear the code and see if it returns

 

I cleared the codes, and unfortunately all of them returned. I am taking it to my mechanic on monday to see whats up. If possible I would love to fix everything that may be simple, I found where the boost pressure valve is with the help of my haynes manual and where the knock sensor is, however I have no clue where this transmission range senor is, and it is not in the Haynes manual.

 

This may be a dumb question, excuse me if it is, but would any of this be related to a bad DV valve?

 

David,

my converter is OEM, but if it is failing shoudn't I bee smelling some foul smell in the air when driving? Also it may help to add my gas mileage is 15 MPG and the car revs too high before it shifts, kinda rough. I figure that might be the transmission range sensor problem.