S4 not running right, need help lots of codes!!

[lpm150689]

Right i have a got a few fault codes that i need help with i have vagcom and autodata online but no pin data available for this vehicle,
The problem is that its running in limp mode, i have found so far water ingress in secondary air pump relay and the one next to it, its got a new ecu that someone has previously fitted this car has been butchered before i got to it, also found water ingress in the accelerator pedal plug, find codes attached, the problem i have with the secondary air pump is that i dont have a earth going to the relay for the secondary air pump, and i recon if i can sort this then maybe the other codes will go with this sorted i.e. mass air flow

Chris EDIT-

Chassis Type: 8E - Audi A4 B6/B7
Scan: 01 02 03 08 09 0F 11 15 16 17 18 36 37 45 46 55 56 57 65 67
69 75 76 77

VIN: <removed> Mileage: 214210km/133103miles
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Address 01: Engine Labels: 079-910-560-BBK.lbl
Part No SW: 8E0 910 560 HW: 4E0 907 560
Component: 4.2L V8/5V 0040
Coding: 0011711
Shop #: WSC 78901 281 394790
VCID: E2C05D333EB47308D71

14 Faults Found:
17980 - Left Engine Mount Solenoid Valve (N144)
P1572 - 002 - Short to Ground
17833 - EVAP Purge Valve (N80)
P1425 - 002 - Short to Ground
17985 - Right Engine Mount Solenoid Valve (N145)
P1577 - 004 - Open Circuit
17843 - Secondary Air Pump Relay (J299)
P1435 - 002 - Short to Ground
17829 - Secondary Air Injection Solenoid Valve (N112)
P1421 - 002 - Short to Ground
16441 - Oxygen (Lambda) Sensor B2 S2: Heating Circuit
P0057 - 002 - Short to Ground
16421 - Oxygen (Lambda) Sensor B1 S2: Heating Circuit
P0037 - 002 - Short to Ground
19474 - Valve for Exhaust Flap 1 (N321)
P3018 - 002 - Short to Ground
16486 - Mass Air Flow Sensor (G70)
P0102 - 002 - Signal too Low
16415 - Oxygen (Lambda) Sensor B1 S1: Heating Circuit
P0031 - 002 - Short to Ground
16435 - Oxygen (Lambda) Sensor B2 S1: Heating Circuit
P0051 - 002 - Short to Ground
17522 - Oxygen (Lambda) Sensor; B1 S2
P1114 - 002 - Internal Resistance too High
17548 - Oxygen (Lambda) Sensor; B2 S2
P1140 - 002 - Internal Resistance too High
18038 - Accelerator Position Sensor (G79)
P1630 - 002 - Signal too Low - Intermittent
Readiness: 0110 1101

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Address 03: ABS Brakes Labels: 8E0-614-517.lbl
Part No: 8E0 614 517 Q
Component: ABS/ESP allrad 3033
Coding: 04595
Shop #: WSC 06435
VCID: 3668516312BC3FA8CB9

1 Fault Found:
18265 - Load Signal
P1857 - 35-00 - Error Message from ECU

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Address 08: Auto HVAC Labels: 8E0-820-043.lbl
Part No: 8E0 820 043 AD
Component: A4 Klimaautomat 1323
Coding: 00001
Shop #: WSC 63251
VCID: 63CED837F1AEFA005C7

3 Faults Found:
01272 - Positioning Motor for Central Flap (V70)
41-10 - Blocked or No Voltage - Intermittent
00819 - High Pressure Sensor (G65)
30-00 - Open or Short to Plus
01317 - Control Module in Instrument Cluster (J285)
79-00 - Please Check Fault Codes

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Address 09: Cent. Elect. Labels: 8E0-907-279-8E2.lbl
Part No: 8E0 907 279 F
Component: int. Lastmodul RDW 0517
Coding: 00011
Shop #: WSC 63251
VCID: 356A566F0FBA34B0C23

1 Fault Found:
00988 - Lamp for Brake Light; Right (M10)
57-00 - Electric Circuit Failure

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Address 15: Airbags Labels: 8E0-959-655-84.lbl
Part No: 8E0 959 655 J
Component: Airbag 8.4EP 1002
Coding: 0010602
Shop #: WSC 63251 000 00000
VCID: 3E7849436A8CF7E8139

1 Fault Found:
00654 - Seat Belt Tensioner Igniter; Driver Side (N153)
001 - Upper Limit Exceeded - MIL ON

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Address 16: Steering wheel Labels: 8E0-953-549.lbl
Part No: 8E0 953 549 S
Component: Lenksáulenmodul 0611
Coding: 01012
Shop #: WSC 63251
VCID: 438E38B7516E9A007C7

No fault code found.

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Address 17: Instruments Labels: 8E0-920-9xx-8E2.lbl
Part No: 8E0 920 981 F
Component: KOMBI+WEGFAHRS. RB4 D42
Coding: 01401
Shop #: WSC 00583
VCID: 3064677BF0D81198915
WAUZZZ8E74A147656 AUZ6Z0C0368585

1 Fault Found:
00779 - Outside Air Temp Sensor (G17)
30-00 - Open or Short to Plus

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Address 45: Inter. Monitor Labels: 8E0-951-177.lbl
Part No: 8E0 951 177
Component: Innenraumueberw. 0704
Coding: 00001
Shop #: WSC 00000
VCID: EBDE3017997E3240647

1 Fault Found:
01463 - Alarm triggered by Sensor for anti-theft alarm System
43-00 - Closed

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Address 46: Central Conv. Labels: 8E0-959-433-MAX.lbl
Part No: 8E0 959 433 BC
Component: Komfortgerát T3B 1311
Coding: 07115
Shop #: WSC 63251
VCID: 73EEA877414E6A802C7

Subsystem 1 - Part No: 8E2959802B
Component: Tõrsteuer.FS BRM 0003

Subsystem 2 - Part No: 8E2959801B
Component: Tõrsteuer.BF BRM 0003

Subsystem 3 - Part No: 8E0959801A
Component: Tõrsteuer.HL BRM 0004

Subsystem 4 - Part No: 8E0959802A
Component: Tõrsteuer.HR BRM 0004

10 Faults Found:
01134 - Alarm Horn (H12)
49-00 - No Communications
01370 - Alarm triggered by Interior Monitoring
35-00 - -
00962 - Alarm via. Tilt Sensor
35-00 - -
01369 - Alarm triggered by Hood Switch
35-00 - -
01373 - Alarm triggered by Radio Ground Contact
35-00 - -
01384 - Alarm triggered by Glass Breakage Sensor
35-00 - -
01331 - Door Control Module; Driver Side (J386)
53-10 - Supply Voltage Too Low - Intermittent
01705 - Selection Switch for Mirror-Adjust (E48)
27-00 - Implausible Signal
01559 - Drivers Door
60-10 - Won't Safe - Intermittent
00943 - Heated Exterior Mirror; Driver Side (Z4)
57-10 - Electric Circuit Failure - Intermittent

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Address 55: Xenon Range Labels: 4Z7-907-357.lbl
Part No: 4Z7 907 357
Component: dynamische LWR D09
Coding: 00060
Shop #: WSC 63251
VCID: 040CFBAB14E05D3805D

2 Faults Found:
00774 - Level Control System Sensor; Left Rear (G76)
28-00 - Short to Plus
00776 - Level Control System Sensor; Left Front (G78)
28-10 - Short to Plus - Intermittent

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Address 56: Radio Labels: 8E0-035-1xx-56.lbl
Part No: 8E0 035 195 M
Component: symphony II NP2 0400
Coding: 01200
Shop #: WSC 71936
VCID: 3162627FFBD218909EB

1 Fault Found:
00466 - Control Module for Steering Column Electronics (J527)
49-00 - No Communications

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Address 76: Park Assist Labels: 8Z0-919-283.lbl
Part No: 8Z0 919 283 A
Component: Parkingsyst. A4 RDW D09
Coding: 00114
Shop #: WSC 63251
VCID: 438E38B7516E9A007C7

No fault code found.

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

[jonathanfenton]

I would check for water ingress in and around ECU if the box is full or water it would make everything short to ground, failing that sounds like everythings short circuiting.

Would be interested to know how you get on.

[jonathanfenton]

re-read that your have already looked at ECU box, in what way has it been butchered? have you looked at the connectors?

I presume you've tried wiping them all, also unplugging battery for a bit and resetting everything to see what comes back?

[lpm150689]

Yeah I've tried all that pal just need to know where the secondary air pump relay gets an earth from? Or whether it's switched from the ignition the biggest problem is I don't have any wiring diagrams or pin data for it.

[pauldazzle]

Check for water in the Plenum chamber, i.e under the battery & brake servo.

[lpm150689]

Done that need to know where the secondary air pump relay gets its earth from that's we're my problem lies

[lpm150689]

Fixed! Done! Next!

[Guest 2]

Fixed! Done! Next!

what was the fix?

[lpm150689]

Broken earth feed wire to relay and accelerator pedal