Hello!
Having some fault codes on my audi s4 b5, the Engine has been out by previous owner and i didnt feel any issue earlier (never driven an s4 Before).
I installed an boost gauge and noticed that the boost pressure goes up to about 1Bar for a Quick moment then falls down to 0,5bar.
They also had installed an manual boost controller and to my suprise they had removed the n75 valve and had just left the contact dangling empty.
I made a scan of the car and mounted a n75 valve that is plugged at the moment i also pressure tested the intake system but still issue with boost it hits 1bar for a second and now goes down to about 0.6-0.7 bar. Tried adjusting boost controller but no luck. I will try remove it and make it original again but i still got fault code on one lambda sensor and exhaust temp sensor, are these faults making the car go in some kind of protection mode? I will make a better search on sunday but was asking here for some ideas on where to start looking?
Fuses, wires? any well know faults? maybe the sensors themself?
Codes is coming back directly after startup, no check Engine light on the dash.
Having some fault codes on my audi s4 b5, the Engine has been out by previous owner and i didnt feel any issue earlier (never driven an s4 Before).
I installed an boost gauge and noticed that the boost pressure goes up to about 1Bar for a Quick moment then falls down to 0,5bar.
They also had installed an manual boost controller and to my suprise they had removed the n75 valve and had just left the contact dangling empty.
I made a scan of the car and mounted a n75 valve that is plugged at the moment i also pressure tested the intake system but still issue with boost it hits 1bar for a second and now goes down to about 0.6-0.7 bar. Tried adjusting boost controller but no luck. I will try remove it and make it original again but i still got fault code on one lambda sensor and exhaust temp sensor, are these faults making the car go in some kind of protection mode? I will make a better search on sunday but was asking here for some ideas on where to start looking?
Fuses, wires? any well know faults? maybe the sensors themself?
Codes is coming back directly after startup, no check Engine light on the dash.
Code:
Friday,14,June,2019,18:46:56:44208
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 19.6.0.4 (x64) HEX-NET CB: 0.4505.4
Data version: 20190529 DS308.0
www.Ross-Tech.com
VIN: License Plate: AJJ275
Mileage: 199690km-124081mi Repair Order:
--------------------------------------------------------------------------------
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Chassis Type: 8D - Audi A4/S4/RS4 B5 (1995 > 2002)
Scan: 01 02 03 08 15 16 17 25 35 37 45 55 56 57 67 75 76 77
Mileage: 199690km-124081miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 078-907-551-AZA.lbl
Part No: 8D0 907 551 D
Component: 2.7l V6/5VT 0002
Coding: 05711
Shop #: WSC 00000
VCID: 2B16E3B2DBA9801712-5160
2 Faults Found:
16538 - Oxygen (Lambda) Sensor B2 S1
P0154 - 35-00 - No Activity
17861 - Exhaust Gas Temp Sensor 1 (G235)
P1453 - 35-00 - Open or Short to Plus
Readiness: 0000 0000
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8D0-907-389.lbl
Part No: 8D0 907 389 E
Component: ABS/ESP allrad D26
Coding: 04395
Shop #: WSC 06435
VCID: 3522C5CA0DEDC6E774-5160
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8D0-820-043-1D.lbl
Part No: 8D0 820 043 N
Component: A4 KLIMAAUTOMAT D56
Coding: 00060
Shop #: WSC 06325
VCID: 2B16E3B2DBA9801712-258E
1 Fault Found:
00792 - A/C Pressure Switch (F129)
31-00 - Open or Short to Ground
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8D0-959-655-AI8.lbl
Part No: 8D0 959 655 J
Component: Airbag Front+Seite 0001
Coding: 00106
Shop #: WSC 06325
VCID: 3D32DDEA35DD1EA7BC-513C
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8D0-920-xxx-17.lbl
Part No: 8D0 920 930 Q
Component: B5-KOMBIINSTR. VDO D07
Coding: 00162
Shop #: WSC 03115
VCID: 3424F8CE0697DFEF43-5160
Component: AUZ7Z0X1133583
ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ AUZ7Z0X1133583
No fault code found.
-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels:. 8D0-862-257.clb
Part No: 8L0 862 257 G
Component: ZV-Pumpe, DWA, Funk D08
Coding: 13130
Shop #: WSC 06325
VCID: 393AC9FA21F5228790-4EC8
5 Faults Found:
01371 - Alarm triggered by Door Contact Switch; Driver's Side
35-00 - -
01370 - Alarm triggered by Interior Monitoring
35-00 - -
01369 - Alarm triggered by Hood Switch
35-00 - -
01365 - Lock/Unlock Switch; Interior
29-00 - Short to Ground
00955 - Key 1
09-00 - Adaptation Limit Surpassed
-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: 4B0-951-173.lbl
Part No: 4B0 951 173
Component: Innenraumueberw. D03
Coding: 00102
Shop #: WSC 06325
VCID: 608C449EE2EF134FF7-4AA4
No fault code found.
-------------------------------------------------------------------------------
Address 55: Headlight Range Labels: 4B0-907-357-AUT.lbl
Part No: 4B0 907 357
Component: LEUCHTWEITEREGLER D003
Coding: 00012
Shop #: WSC 06325
VCID: 6582558AFDCD766704-5160
No fault code found.
-------------------------------------------------------------------------------
Address 56: Radio Labels: 8D0-035-1xx-56.lbl
Part No: 4B0 035 186
Component: Radio 0001
Coding: 00407
Shop #: WSC 00000
VCID: 5DF27D6AD59D3EA7DC-4B00
2 Faults Found:
00668 - Supply Voltage Terminal 30
07-10 - Signal too Low - Intermittent
01044 - Control Module Incorrectly Coded
35-00 - -
End----------(Elapsed Time: 03:32, VBatt start/end: 12.1V/12.2V)-----------
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