Audi A3 2007 1.9 BXE Camshaft Position Sensor (G40) P3007 - 000 - No Signal - Intermittent

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G86EVO

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Hi all.
Its my first post on here so if i make a mess of it please excuse me.

I've got an 2007 Audi a3 with the 1.9 PD BXE engine.
Its been having long crank issues for a couple of weeks now so I've decided this weekend to have a look at it.

I Have a fault code stored P3007 Cam Position Sensor G40 No Signal - Intermittent.

First of all i have checked on advanced measuring blocks on cam speed and torsion value and found the sensor to drop out.
The next step of diagnosis i removed the connector for the cam sensor and checked the terminals for any corrosion etc.
Ive then checked voltage at my wiring and found Pin 1 - 5v Pin 2 - 5v and Pin 3 - 0v (Ground)?

I know that the wiring looms can rub through on the front of the engine so ive pulled the trunking off and inspected the loom but couldn't find any faults.
I've then removed the ECU and checked resistance through the wiring back to the cam sensor -

Pins 27 - 28 - 12 on the ecu to Pins 1 - 2 - 3 of the Cam sensor to find 0.01Ohms.

Happy with my figures i have then gone ahead and replaced the cam sensor.

After replacing the cam sensor i found a different fault to appear being P0341 - Camshaft Position Sensor (G40): Implausible Signal

When checking on advanced measuring blocks i have the correct cam speed but on torsion value to sit 0.0kw

I've tried clearing the fault code but it comes straight back.

I've now checked the engine timing and found to be perfect.

I'm starting to think the new cam sensor purchased is at fault. This is also a Lucas cam sensor. Have i been stupid here and should have just gone genuine?

I've got a scan of the vehicle but im unsure how to upload so i will post it in here.


Code:
Sunday,08,November,2020,13:08:59:43516
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 20.4.2.0 (x64)  HEX-V2 CB: 0.4513.4
Data version: 20200730 DS317.0
www.Ross-Tech.com

Dealer/Shop Name:

VIN:    License Plate:
Mileage: 252730km-157039mi   Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 8P (1K0)
Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56 62 72 77

VIN: WAUZZZ8P38A087706   Mileage: 252730km-157039miles

01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: Sporadic communication error 1000
44-Steering Assist -- Status: Malfunction 0010
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: Sporadic communication error 1000
77-Telephone -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 03G-906-016-BKC.clb
   Part No SW: 03G 906 021 LS    HW: 03G 906 021 AN
   Component: R4 1,9L EDC  000SG  9182 
   Revision: --H07---    Serial number: AUX7Z0G9FN909U
   Coding: 0000071
   Shop #: WSC 06314 000 00000
   VCID: 7BA207CC2FEFFF13071-802E

1 Fault Found:
012295 - Camshaft Position Sensor (G40)
               P3007 - 000 - No Signal - Intermittent
             Freeze Frame:
                    Fault Status: 00110000
                    Fault Priority: 0
                    Fault Frequency: 9
                    Reset counter: 255
                    Mileage: 252722 km
                    Time Indication: 0
                    Date: 2020.10.27
                    Time: 15:28:19

             Freeze Frame:
                    RPM: 819 /min
                    Speed: 0.0 km/h
                    Load: 0.0 %
                    Voltage: 14.06 V
                    Bin. Bits: 11000000
                    Idle Stabilization: 0.0°KW
                    (no units): 48.0

Readiness: 0 0 0 0 0

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1K0-907-379-MK60-F.lbl
   Part No SW: 1K0 907 379 AC    HW: 1K0 907 379 AC
   Component: ESP FRONT MK60      0101 
   Revision: 00H11001   
   Coding: 0021121
   Shop #: WSC 06314 000 00000
   VCID: 73B22FEC07BFB7535F1-8026

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: None
   Part No: 8P0 820 047
   Component: J255  Klima Man H07 0030 
   Shop #: WSC 00000 000 00000
   VCID: 6D863994619B61A3895-8038

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels:. 8P0-907-279-30-B.lbl
   Part No SW: 8P0 907 279 J    HW: 8P0 907 279 J
   Component: Bordnetz-SG     H54 2501 
   Revision: 00H54000    Serial number: 00000007707726
   Coding: 00880F01B01410004F1600001600000000085A175C010000000000000000
   Shop #: WSC 06314 000 08192
   VCID: 44D0BC30129140EB36B-8010

   Subsystem 1 - Part No: 8P2 955 119 E  Labels: 1KX-955-119.CLB
   Component: Wischer AU350   H01 0130 
   Coding: 00062736
   Shop #: WSC 06314 

3 Faults Found:
00979 - Lamp for Low Beam; Right (M31)
            010 - Open or Short to Plus - Intermittent
             Freeze Frame:
                    Fault Status: 00111010
                    Fault Priority: 1
                    Fault Frequency: 1
                    Reset counter: 123
                    Mileage: 251648 km
                    Time Indication: 0
                    Date: 2020.10.02
                    Time: 17:13:00

             Freeze Frame:
                        ON
                    Voltage: 14.05 V
                        ON
                        ON
                        OFF
                        OFF
                        ON

01334 - Door Control Module; Rear Right (J389)
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 2
                    Fault Frequency: 254
                    Reset counter: 84
                    Mileage: 200551 km
                    Time Indication: 0
                    Date: 2017.10.31
                    Time: 17:32:00

             Freeze Frame:
                        OFF
                    Voltage: 12.20 V
                        OFF
                        ON
                        OFF
                        OFF
                        OFF

01331 - Door Control Module; Driver Side (J386)
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 2
                    Fault Frequency: 254
                    Reset counter: 84
                    Mileage: 245745 km
                    Time Indication: 0
                    Date: 2020.06.15
                    Time: 09:15:00

             Freeze Frame:
                        ON
                    Voltage: 13.95 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF


-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8P0-959-655-94.lbl
   Part No SW: 8P0 959 655 L    HW: 8P0 959 655 L
   Component:    Airbag 9.41  H01 4210 
   Revision: 91H01421    Serial number: 003CP0018PC0 
   Coding: 0071612
   Shop #: WSC 06314 000 00000
   VCID: 4BC2970C3FCF8F93F71-801E

   Subsystem 1 - Serial number: 6332DRB405F61524L

   Subsystem 2 - Serial number: 6342DRB405F54EA93

   Subsystem 3 - Serial number: 63528RB40316A77DR

   Subsystem 4 - Serial number: 63628RB40316AA10C

   Subsystem 5 - Serial number: 63747RB402FA76C0Z

   Subsystem 6 - Serial number: 63847RB402FA899D7

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
   Part No SW: 1K0 953 549 AH    HW: 1K0 953 549 AH
   Component: J0527           036 0070 
   Coding: 0000002
   Shop #: WSC 06314 000 00000
   VCID: 78A818C01ED9D40B6A3-802C

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 8P0-920-xxx-17-MY8.clb
   Part No SW: 8P0 920 951 G    HW: 8P0 920 951 G
   Component: KOMBIINSTR. VDO H20 0630 
   Revision: D0H20001    Serial number: 1249G001100086
   Coding: 0004423
   Shop #: WSC 00779 067 57207
   VCID: 392EDDC465530D0355D-806C

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels:. 1K0-907-530-V3.clb
   Part No SW: 1K0 907 530 P    HW: 1K0 907 951
   Component: J533__Gateway   H16 0191 
   Revision:   H16       Serial number: 2000K07A03851E
   Coding: E9807F060006022103
   Shop #: WSC 06314 000 00000
   VCID: 3430ECF04231F06B86B-8060

2 Faults Found:
01334 - Door Control Module; Rear Right (J389)
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 2
                    Fault Frequency: 254
                    Reset counter: 84
                    Mileage: 200551 km
                    Time Indication: 0
                    Date: 2017.10.31
                    Time: 17:32:12

01331 - Door Control Module; Driver Side (J386)
            004 - No Signal/Communication - Intermittent
             Freeze Frame:
                    Fault Status: 00100100
                    Fault Priority: 2
                    Fault Frequency: 254
                    Reset counter: 84
                    Mileage: 245721 km
                    Time Indication: 0
                    Date: 2020.06.14
                    Time: 15:52:52


-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
   Part No SW: 8P0 920 951 G    HW: 8P0 920 951 G
   Component: KOMBIINSTR. VDO H20 0630 
   Revision: D0H20001    Serial number: AUX7Z0G9FN909U
   Shop #: WSC 00000 000 00000
   VCID: 392EDDC465530D0355D-806C

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels: 8P0-959-801-MIN3.lbl
   Part No SW: 8P0 959 801 K    HW: 8P0 959 801 K
   Component: Tuer-SG         H03 0050 
   Coding: 0000688
   Shop #: WSC 06314 000 00000
   VCID: 43D2BF2C179F47D30F1-8016

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1Kx-909-144-G2V3.clb
   Part No: 1K2 909 144 M
   Component: EPS_ZFLS Kl.078 H08 1901 
   Shop #: WSC 02069 000 90108
   VCID: 3634D6F8544DE27BB8F-8062

1 Fault Found:
00778 - Steering Angle Sensor (G85)
            000 - -

-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels: 8P0-959-433.lbl
   Part No: 8P0 959 433 J
   Component:    KSG          H11 0080 
   Coding: 1980202002186D0985054C9FC637
   Shop #: WSC 06314 000 00000
   VCID: 43D2BF2C179F47D30F1-8016

   Subsystem 1 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HORN H03 1301

   Subsystem 2 - Part No: 1K0 907 719 C
   Component: Neigungssensor  005 0003

   Subsystem 3 - Part No: 8P0 951 177
   Component: Innenraumueberw.H04 0020

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels:. 1K0-959-702-MIN3.clb
   Part No SW: 8P0 959 802 K    HW: 8P0 959 802 K
   Component: Tuer-SG         H03 0050 
   Coding: 0000688
   Shop #: WSC 06314 000 00000
   VCID: 44D0BC30129140EB36B-8010

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 8J0-035-1xx-56.clb
   Part No SW: 8P0 035 152 C    HW: 8P0 035 152 C
   Component: R Chorus2+      H16 0240 
   Revision: 00H16000    Serial number: AUZ1Z2G9266817
   Coding: 0400221
   Shop #: WSC 06314 000 00000
   VCID: 2B02F78C9F0FAF93D71-807E

1 Fault Found:
00871 - Bass Speaker Front Right (R23)
            011 - Open Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101011
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 123
                    Mileage: 250597 km
                    Time Indication: 0
                    Date: 2020.09.08
                    Time: 14:39:47


-------------------------------------------------------------------------------
Address 62: Door, Rear Left        Labels: 8P4-959-801.lbl
   Part No SW: 8P4 959 801 E    HW: 8P4 959 801 E
   Component: Tuer-SG         H04 0040 
   Coding: 0000144
   Shop #: WSC 06314 000 1012544
   VCID: 41DEB5240D8355C31DD-8014

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right        Labels: 8P4-959-802.lbl
   Part No SW: 8P4 959 802 E    HW: 8P4 959 802 E
   Component: Tuer-SG         H04 0040 
   Coding: 0000144
   Shop #: WSC 06314 000 1012544
   VCID: 42DCBA2808854EDB047-8016

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone        Labels: 8P0-862-335.lbl
   Part No SW: 8P0 862 335 Q    HW: 8P0 862 335 Q
   Component: FSE_255x BT     H26 0350 
   Revision: 00000000    Serial number: 00000005261472
   Coding: 0000120
   Shop #: WSC 06314 000 00000
   VCID: 44D0BC30129140EB36B-8010

No fault code found.

End----------(Elapsed Time: 01:22, VBatt start/end: 12.7V/12.7V)-----------
 
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Uwe

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I'm starting to think the new cam sensor purchased is at fault.
What is its provenance?

This is also a Lucas cam sensor. Have i been stupid here and should have just gone genuine?
It's difficult to say for sure, but buying genuine VW/Audi parts, especially sensors, is certainly the safest bet.

-Uwe-
 
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G86EVO

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What is its provenance?


It's difficult to say for sure, but buying genuine VW/Audi parts, especially sensors, is certainly the safest bet.

-Uwe-
Thankyou for the reply Uwe, I’m going to try and get a genuine sensor today see if that resolves my problem. I’ll keep the post updated.
 
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Jack@European_Parts

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Did you load test the wiring and not just ohm it out and are you sure since a low range voltage and can be subject to FOD impedance of signal if it is with inadequate shield?
 
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G86EVO

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Update on the cam sensor. I've managed to get around to fitting the new genuine cam sensor today, deleted all fault codes took the car for a test drive and confirmed the fault rectified. Lesson learnt on non genuine sensors. Thanks for all help guys its appreciated.
 
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