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Thread: 2008 jetta p0442 small evap leak

  1. #1
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    2008 jetta p0442 small evap leak

    This jetta was here about a month ago with p0442 small evap leak, at that time the purge valve was leaking and also the gas cap was replaced. It tested good basic setting 071. I have it back here I tested the purge valve again it holds vacuum and works fine, its clean inside. I hooked up my homemade water manometer to the vapour hose that connects to the purge valve (canister) and ran basic settings 071 I can see pressure build up maybe 6 inches of water (not accurate) but it stays there and doesn't bleed down. It doesn't appear to have a leak but I pressurized the system and with soapy water looked for any leaks, none were found I removed the seat and looked at fuel sender and no leaks there. I checked for good vacuum at LDP. The fuel gauge does work correctly without issues.I passes evap test evrytime.071 Any ideas i would appreciate. Mario

    Code:
    Wednesday,08,March,2017,10:28:12:15785
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x86
    VCDS Version: 17.1.3.0
    Data version: 20170220 DS267.3
    www.Ross-Tech.com
    
    
    VIN: 3VWRM31K68M120324   License Plate: ACAD556
    Mileage: 228490km-141977mi   Repair Order: 
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 1K (1K0)
    Scan: 01 02 03 08 09 15 16 17 19 1C 25 42 44 46 52 56 62 72
    
    VIN: 3VWRM31K68M120324   Mileage: 228490km-141977miles
    
    01-Engine -- Status: Sporadic communication error 1000
    02-Auto Trans -- Status: OK 0000
    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: Malfunction 0010
    19-CAN Gateway -- Status: Malfunction 0010
    1C-Position Sensing -- Status: OK 0000
    25-Immobilizer -- Status: Malfunction 0010
    42-Door Elect, Driver -- Status: OK 0000
    44-Steering Assist -- Status: OK 0000
    46-Central Conv. -- Status: OK 0000
    52-Door Elect, Pass. -- Status: Malfunction 0010
    56-Radio -- Status: Malfunction 0010
    62-Door, Rear Left -- Status: OK 0000
    72-Door, Rear Right -- Status: Malfunction 0010
     
    -------------------------------------------------------------------------------
    Address 01: Engine (CBT)       Labels: 06A-906-032-BGP.lbl
       Part No SW: 07K 906 032 BJ    HW: 07K 906 032 Q
       Component: 2,5l R5/4V      G   1567  
       Revision: 1NH01---    Serial number: VWX7Z0H024A0OK
       Coding: 0000003
       Shop #: WSC 00066 000 00000
       VCID: 72E067526D9288D1EF-8026
    
    No fault code found.
    Readiness: 0010 1100
    
    -------------------------------------------------------------------------------
    Address 02: Auto Trans        Labels: 09G-927-750.clb
       Part No SW: 09G 927 750 HE    HW: 09G 927 750 HE
       Component: AQ 250 6F           1090  
       Revision: 00H69000    Serial number:               
       Coding: 0000584
       Shop #: WSC 00066 000 00000
       VCID: 7BFE4A763AD8C999BC-802E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    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 00066 000 00000
       VCID: 3F86FE666E4015B9D0-806A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: 1K0-820-047.lbl
       Part No SW: 1K0 820 047 HC    HW: 1K0 820 047 HC
       Component: Climatic PQ35   141 1010  
       Revision: 00141028    Serial number: 00000000000000
       Shop #: WSC 00000 000 00000
       VCID: 6CDC792A4FB65E2125-8038
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect.        Labels: 3C0-937-049-30-H.lbl
       Part No SW: 3C0 937 049 AJ    HW: 3C0 937 049 AJ
       Component: Bordnetz-SG     H54 2202  
       Revision: 00H54000    Serial number: 00000000831183
       Coding: 10058E234004150007140000001400000008730B5C000100000000000000
       Shop #: WSC 00066 000 00000
       VCID: 71E2685E6894B3C916-8024
    
       Subsystem 1 - Part No: 1K1 955 119 E  Labels: 1KX-955-119.CLB
       Component: Wischer 180108 021  0501  
       Coding: 00038805
       Shop #: WSC 00066  
    
    1 Fault Found:
    01314 - Engine Control Module 
                004 - No Signal/Communication - Intermittent
                 Freeze Frame:
                        Fault Status: 00100100
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 216
                        Mileage: 227391 km
                        Time Indication: 0
                        Date: 2005.09.13
                        Time: 31:63:63
    
                 Freeze Frame:
                            ON
                        Voltage: 14.00 V
                            ON
                            ON
                            OFF
                            OFF
                            OFF
    
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 1K0-909-605.lbl
       Part No SW: 1K0 909 605 AB    HW: 1K0 909 605 AB
       Component: 6E AIRBAG VW8R  034 8000  
       Revision: 05034000    Serial number: 003B6M0457Z7  
       Coding: 0013893
       Shop #: WSC 00066 000 00000
       VCID: 6CDC792A4FB65E2125-8038
    
       Subsystem 1 - Serial number: 6332MSME1727655AE
    
       Subsystem 2 - Serial number: 6342MSME17261306+
    
       Subsystem 3 - Serial number: 6351HSME127863622
    
       Subsystem 4 - Serial number: 6361HSME1278583CE
    
       Subsystem 5 - Serial number: 63727SME263D1A7BD
    
       Subsystem 6 - Serial number: 63827SME12131A56X
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
       Part No SW: 1K0 953 549 BG    HW: 1K0 953 549 BG
       Component: J0527           051 0100  
       Coding: 0012021
       Shop #: WSC 00066 000 00000
       VCID: 78F4557A0BEEE281D1-802C
    
       Subsystem 1 - Part No: XXXXXXXXXXX 
       Component: E0221           002 0010
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 1K0-920-xxx-17.lbl
       Part No SW: 1K0 920 874 J    HW: 1K0 920 874 J
       Component: KOMBIINSTRUMENT 3HL 1216  
       Revision: V0002000    Serial number: VWX7Z0H024A0OK
       Coding: 0023303
       Shop #: WSC 12345 067 57207
       VCID: 346CA14A5706C6E13D-8060
    
    1 Fault Found:
    01314 - Engine Control Module 
                004 - No Signal/Communication - Intermittent
                 Freeze Frame:
                        Fault Status: 00100100
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 216
                        Mileage: 227391 km
                        Time Indication: 0
                        Date: 2000.00.00
                        Time: 19:14:27
    
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels: 1K0-907-530-V3.clb
       Part No SW: 1K0 907 530 L    HW: 1K0 907 951 
       Component: J533  Gateway   H07 0052  
       Revision:   H07 01    Serial number: 021207F2001654
       Coding: ED807F060012021002
       Shop #: WSC 00066 000 00000
       VCID: 3064AD5AA31EFAC159-8064
    
    1 Fault Found:
    01314 - Engine Control Module 
                004 - No Signal/Communication - Intermittent
                 Freeze Frame:
                        Fault Status: 00110100
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 216
                        Mileage: 227391 km
                        Time Indication: 0
                        Date: 2000.00.00
                        Time: 19:14:29
    
    
    -------------------------------------------------------------------------------
    Address 1C: Position Sensing        Labels: 1Kx-919-xxx-1C.lbl
       Part No SW: 1K5 919 965 A    HW: 1K5 919 965 A
       Component: Kompass         005 0004  
       Revision: 00005000    Serial number: 1293324T2WYC04
       Coding: 0000003
       Shop #: WSC 00066 000 00000
       VCID: 3972907E70643B89EE-806C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
       Part No SW: 1K0 920 874 J    HW: 1K0 920 874 J
       Component: IMMO            3HL 1216  
       Revision: V0002000    Serial number: VWX7Z0H024A0OK
       Shop #: WSC 93027 999 999999
       VCID: 346CA14A5706C6E13D-8060
    
    1 Fault Found:
    01176 - Key 
                008 - Implausible Signal - Intermittent
                 Freeze Frame:
                        Fault Status: 00101000
                        Fault Priority: 2
                        Fault Frequency: 3
                        Reset counter: 255
                        Mileage: 160545 km
                        Time Indication: 0
                        Date: 2000.00.00
                        Time: 09:37:08
    
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver        Labels: 1K0-959-701-MIN3.clb
       Part No SW: 1K0 959 701 P    HW: 1K0 959 793 L
       Component: J386  TUER-SG FT    1133  
       Revision: 32008001    Serial number: 00000515679221
       Coding: 0001205
       Shop #: WSC 00066 000 00000
       VCID: 3B7E8A767A580999FC-806E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 44: Steering Assist        Labels: 1Kx-909-144-G2V3.clb
       Part No: 1K1 909 144 M
       Component: EPS_ZFLS Kl.070 H08 1901  
       Shop #: WSC 02069 000 90108
       VCID: 356A9C4E5C7CDFE90A-8060
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv.        Labels: 1K0-959-433-MAX.clb
       Part No SW: 1K0 959 433 CA    HW: 1K0 959 433 CA
       Component:    KSG PQ35 G2  020 0204  
       Revision: 00020000    Serial number: 00000000000000
       Coding: 13900F880106281B0904058FB0880F0488FC00
       Shop #: WSC 93027 999 194887
       VCID: 71E2685E6894B3C916-8024
    
       Subsystem 1 - Component:   Sounder n.mounted     
    
       Subsystem 2 - Component:       NGS n.mounted     
    
       Subsystem 3 - Component:      IRUE n.mounted     
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass.        Labels: 1K0-959-702-MIN3.clb
       Part No SW: 1K0 959 702 P    HW: 1K0 959 792 L
       Component: J387  TUER-SG BT    1133  
       Revision: 32008001    Serial number: 00000580479208
       Coding: 0001204
       Shop #: WSC 00066 000 00000
       VCID: 3C7C896A7F560EA1F5-8068
    
    1 Fault Found:
    00110 - Right Mirror Turn Signal Lamp (L132) 
                012 - Electrical Fault in Circuit
                 Freeze Frame:
                        Fault Status: 01101100
                        Fault Priority: 5
                        Fault Frequency: 254
                        Reset counter: 211
                        Mileage: 49172 km
                        Time Indication: 0
    
    
    -------------------------------------------------------------------------------
    Address 56: Radio        Labels: 1K0-035-1xx-56.lbl
       Part No SW: 1K0 035 180 M    HW: 1K0 035 180 M
       Component: Radio DE2       016 0020  
       Revision: 00016000    Serial number: VWZ4Z7H3133946
       Coding: 0010400
       Shop #: WSC 00000 000 00000
       VCID: 2A50BF3285C2801197-807E
    
    1 Fault Found:
    00003 - Control Module 
                014 - Defective
    
    -------------------------------------------------------------------------------
    Address 62: Door, Rear Left        Labels: 1K0-959-703-GEN3.clb
       Part No SW: 1K0 959 703 Q    HW: 1K0 959 795 J
       Component: J388   TUER-SG HL   1120  
       Revision: 12006001    Serial number: 00000002636192
       Coding: 0001168
       Shop #: WSC 00066 000 00000
       VCID: 3E788362694A1CB1DB-806A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 72: Door, Rear Right        Labels: 1K0-959-704-GEN3.clb
       Part No SW: 1K0 959 704 Q    HW: 1K0 959 794 J
       Component: J389   TUER-SG HR   1120  
       Revision: 12006001    Serial number: 00000002632215
       Coding: 0001168
       Shop #: WSC 00066 000 00000
       VCID: 3F86FE666E4015B9D0-806A
    
    2 Faults Found:
    00931 - Locking Module for Central Locking; Rear Right (F223) 
                008 - Implausible Signal
                 Freeze Frame:
                        Fault Status: 01101000
                        Fault Priority: 3
                        Fault Frequency: 254
                        Reset counter: 211
                        Mileage: 54798 km
                        Time Indication: 0
    
    01554 - Motors for Central Locking; Rear Doors; Lock 
                012 - Electrical Fault in Circuit
                 Freeze Frame:
                        Fault Status: 01101000
                        Fault Priority: 3
                        Fault Frequency: 254
                        Reset counter: 211
                        Mileage: 54798 km
                        Time Indication: 0
    
    
    End-------------------------(Elapsed Time: 02:18)--------------------------
    Last edited by Uwe; 03-08-2017 at 02:49 PM. Reason: CODE tags

  2. #2
    NostraJackAss Jack@European_Parts's Avatar
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    Was or is the N80 a factory part or Ching Chow that was replaced........?

    When running the 071 test does the tank implode when observing?

    Do we get any other DTC's?

    Log the test and show the data........

    I see you are also not ready for SAI.........
    European Parts Emporium/Performance / Immobilizer Solutions EPE
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    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
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  4. #3
    Ross-Tech Employee Dana's Avatar
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    Adding to Jack here, also pinch off the N80 hose (either side is fine providing the lines are rubber) and repeat BS 070 and 071. I would expect 070 to fail resulting in an incorrect flow DTC. 071 should pass if the rest of the system is leak free.

    Also, if that car doesn't have much fuel in it you might want to make sure it can be filled normally and that gas isn't shooting back out the filler. If it has a lot of fuel already I would NOT add more in the event you need to access stuff during the diag, instead make sure the customer has not observed any difficulty filling it. Gas shooting back out the filler could point to a contaminated canister due to bad tank.

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  6. #4
    NostraJackAss Jack@European_Parts's Avatar
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    Good post Dana ........You made me think of something.

    This car may have an auxiliary vacuum pump or insufficient vacuum being sent to the LDP.

    I would run a Mighty vac to the LDP circuit directly then run test 0x01-04-071 in VCDS .......if it passes you may want to investigate that available vacuum or accumulation.
    European Parts Emporium/Performance / Immobilizer Solutions EPE
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    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
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  7. #5
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    There are no DTCs now, i can run monitors and evap completes and no issues. The purge valve was OEM and i can run 071 with cap off and i see reed sw cycle from open to close and set a fault code. I ran basic settings 071 many times and it passes everytime. I had the water manometer hooked up during the test and pressure was not high. The customer does not have any issues filling tank the gas tank is just pass half. Thank you
    This car has half of tank of gas i will be comparing to another car tomorrow, the vacuum at the pump is around 22 inches

    https://youtu.be/_fiM1F2_bBI
    Last edited by machado; 03-08-2017 at 05:28 PM.

  8. #6
    NostraJackAss Jack@European_Parts's Avatar
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    Sounds like a weak vacuum and when a very small leak is present like this it usually happens when the tank is low on fuel.

    The lower the tank is on fuel the more pumping of air in is required by the LDP and since it relies on vacuum to operate ......think think!
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
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    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
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  9. #7
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    I have tested a 2009 audi a4 2.0 it tested exactly the same roughly 8 inches of water and held the same. I am starting to think possibly the purge valve sticks open. I am replacing it under warranty and customer is going to drive it. I dont know if that is the problem, we have to wait and see. Mario
    Last edited by machado; 03-09-2017 at 04:00 PM.

  10. #8
    NostraJackAss Jack@European_Parts's Avatar
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    So purge valve was AFT?
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

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