I have ordered a used fuel filter holder.
I can fill the fuel filter cup with fuel, with 12V directly on pump. Still couldnt start the engine yesterday.
Today I wanted to be sure the timing was correct and was ready to read measuring blocks during crank - when the bloody engine started!
Pump in tank went on when I turned ignition on, then engine started.
So I run inside to get low amp probe and SnapOn - the tank pump was not running!
I took off the electric connector on tank pump and the engine continued to run.
I turned off the engine. Started it again, without tank pump connected.
The fuel filter holder will be run empty by the tandem pump.
Am I thinking correct here:
There must be a pressure switch in the fuel pump in the tank - that switches off when the fuel pressure is up in the fuel filter holder.
If a check valve in the filter holder lid is stuck closed - the pump in the tank will not turn on (its brand new).
But I cannot find ANY information on the check valve on a fuel filter holder modell A, where the valve is placed within the lid construction (and not the separate type placed above the lid, that can be changed separately).
Here is a Autoscan - with a fault code from me disconnecting the electric connector:
Code:
Monday,16,November,2020,14:00:32:18201
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 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: Firma Johannes Bruun
Workshop Code: 000 02013 000000
VIN: WVWZZZ1KZ7W264681 License Plate: BWH469
Mileage: 263050km-163451mi Repair Order:
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
Chassis Type: 1K (1K0)
Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56
VIN: WVWZZZ1KZ7W264681 Mileage: 263050km-163451miles
00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: Malfunction 0010
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
-------------------------------------------------------------------------------
Address 01: Engine Labels: 03G-906-016-BKC.clb
Part No SW: 03G 906 021 KG HW: 03G 906 021 AN
Component: R4 1,9L EDC 000SG 9244
Revision: --H07--- Serial number: VWZ7Z0G8112637
Coding: 0000071
Shop #: WSC 01392 785 00200
VCID: 6E85CCE2FC9374EBB0F-803A
No fault code found.
Readiness: 0 0 0 0 1
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1K0-907-379-MK70.lbl
Part No: 1K0 907 379 P
Component: ASR FRONT MK70 0105
Coding: 0017025
Shop #: WSC 01392 785 00200
VCID: 3FDB41A6EB79CD636B9-806A
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 1K0-820-047.lbl
Part No SW: 1K0 820 047 FT HW: 1K0 820 047 FT
Component: Climatic PQ35 141 0909
Revision: 00141027 Serial number: 00000000000000
Shop #: WSC 00000 000 00000
VCID: 7BA3F5B6BFE11143071-802E
No fault code found.
-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels:. 3C0-937-049-23-M.lbl
Part No SW: 3C0 937 049 AD HW: 3C0 937 049 AD
Component: Bordnetz-SG H52 2002
Revision: 00H52000 Serial number: 00000006938468
Coding: 08890F2700041500471400001400000000097B075C0001
Shop #: WSC 00000 785 00200
VCID: 6B83C5F6CF8181C3971-803E
Subsystem 1 - Part No: 1K1 955 119 E Labels: 1KX-955-119.CLB
Component: Wischer 180407 021 0501
Coding: 00038805
Shop #: WSC 00000
No fault code found.
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 1K0-909-605.lbl
Part No SW: 1K0 909 605 T HW: 1K0 909 605 T
Component: 37 AIRBAG VW8 020 2300
Revision: 05020000 Serial number: 0038PD15ZV80
Coding: 0013111
Shop #: WSC 01373 785 00200
VCID: 3D273BAEE175DF73795-8068
Subsystem 1 - Serial number: 6332MSME177E4B65Q
Subsystem 2 - Serial number: 6342MSME17101C600
Subsystem 3 - Serial number: 6352QSME246D2369M
Subsystem 4 - Serial number: 6362QSME26724D7FY
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 1K0-953-549-MY8.lbl
Part No SW: 1K0 953 549 BB HW: 1K0 953 549 BB
Component: Lenksäulenmodul 036 0070
Coding: 0000002
Shop #: WSC 00011 768 00200
VCID: 73B3DD9697B159035F1-8026
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 1K0-920-xxx-17.lbl
Part No SW: 1K0 920 853 Q HW: 1K0 920 853 Q
Component: KOMBIINSTRUMENT VDD 1610
Revision: V0003000 Serial number: VWZ7Z0G8112637
Coding: 0003103
Shop #: WSC 02013 222 99650
VCID: 38292ABACE57FA5BAA3-806C
1 Fault Found:
00771 - Fuel Level Sensor (G)
010 - Open or Short to Plus - Intermittent
Freeze Frame:
Fault Status: 00101010
Fault Priority: 2
Fault Frequency: 1
Reset counter: 75
Mileage: 263053 km
Time Indication: 0
Date: 2000.00.00
Time: 13:47:05
-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels:. 1K0-907-530-V2.clb
Part No SW: 1K0 907 530 K HW: 1K0 907 951
Component: J533__Gateway H04 0021
Revision: H04 02 Serial number: 080407F1001349
Coding: 3D0F034007000002
Shop #: WSC 01392 785 00200
VCID: 2F3B11E63B193DE3FB9-807A
No fault code found.
-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1K0-920-xxx-25.clb
Part No SW: 1K0 920 853 Q HW: 1K0 920 853 Q
Component: IMMO VDD 1610
Revision: V0003000 Serial number: VWZ7Z0G8112637
Shop #: WSC 00000 000 00000
VCID: 38292ABACE57FA5BAA3-806C
No fault code found.
-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels:. 1K0-959-701-MIN3.clb
Part No SW: 1K0 959 701 M HW: 1K0 959 701 M
Component: Tuer-SG 005 0987
Coding: 0000180
Shop #: WSC 01392 785 00200
VCID: 38292ABACE57FA5BAA3-806C
No fault code found.
-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1Kx-909-144-G2V3.clb
Part No: 1K1 909 144 L
Component: EPS_ZFLS Kl.069 H07 1806
Shop #: WSC 00000 028 00001
VCID: 34311E8AD23F1E3B86B-8060
No fault code found.
-------------------------------------------------------------------------------
Address 46: Central Conv. Labels:. 1K0-959-433-MIN.clb
Part No: 1K0 959 433 CP
Component: KSG 0401
Coding: 81C802087F2D8405484BC6F010CC
Shop #: WSC 40950 222 21286
VCID: 0059825AD607729B523-8054
Subsystem 1 - Part No: 1K0 951 605 C
Component: LIN BACKUP HORN H03 1301
Subsystem 2 - Part No: 1K0 951 178 A
Component: Neigungssensor 003 0203
Subsystem 3 - Part No: 1K0 951 178 A
Component: Innenraumueberw.003 0203
No fault code found.
-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels:. 1K0-959-702-MIN3.clb
Part No SW: 1K0 959 702 M HW: 1K0 959 702 M
Component: Tuer-SG 005 0987
Coding: 0000180
Shop #: WSC 01392 785 00200
VCID: 392F2FBEF55DE35355D-806C
No fault code found.
-------------------------------------------------------------------------------
Address 56: Radio Labels: 1K0-035-1xx-56.lbl
Part No SW: 1K0 035 186 T HW: 1K0 035 186 T
Component: Radio BVX 034 0046
Revision: 00034000 Serial number: VWZ1Z2G4739028
Coding: 0020200
Shop #: WSC 01392 785 00200
VCID: 372B2986C349F523A39-8062
1 Fault Found:
01044 - Control Module Incorrectly Coded
000 - -
End----------(Elapsed Time: 01:03, VBatt start/end: 12.6V/12.4V)-----------