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Thread: MAF failure

  1. #1
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    MAF failure

    Hi

    How can I read the MAF?
    The control modules in my vehicle is UDS. I found many tutorials but are non UDS.



    Code:
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x86
    VCDS Version: 18.9.1.0  HEX-V2 CB: 0.4437.4
    Data version: 20190114 DS296.0
    www.Ross-Tech.com
    
    
       License Plate: 16032019
    Mileage: 163640km-101681mi   Repair Order: 
    
    
    Chassis Type: 3C-VW46 (3C0)
    Scan: 01 03 08 09 15 16 17 19 25 42 44 46 4F 52 53 56 61
    
    VIN: WVWZZZ3CZAE075321   Mileage: 163640km-101681miles
    
    01-Engine -- 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: OK 0000
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    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
    4F-Centr. Electr. II -- Status: OK 0000
    52-Door Elect, Pass. -- Status: OK 0000
    53-Parking Brake -- Status: OK 0000
    56-Radio -- Status: Malfunction 0010
    61-Battery Regul. -- Status: OK 0000
    -------------------------------------------------------------------------------
    Address 01: Engine (J623-CAYC)       Labels:. 03L-906-023-CAY.clb
       Part No SW: 03L 906 023 GL    HW: 03L 906 023 A
       Component: 1,6l R4 CR td H23 5810  
       Revision: --------    Serial number: 00000000000000
       Coding: 00114014032501080000
       Shop #: WSC 99999 1023 2097151
       ASAM Dataset: EV_ECM16TDI02103L906023GL 001006
       ROD: EV_ECM16TDI_001_VW46.rod
       VCID: 76B410CDD84FCD57B41-8022
    
    No fault code found.
    Readiness: 0000 0000
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 3C0-614-109-C4.clb
       Part No SW: 3C0 614 109 AK    HW: 3C0 614 109 AK
       Component: J104    C4 440 V2   0027  
       Revision: --025---    Serial number: 00000795856674
       Coding: 0034287
       Shop #: WSC 05311 000 00000
       VCID: 678A4D89836524DF3F7-8032
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC (J301)       Labels:| 3C8-907-336.clb
       Part No SW: 3C8 907 336 AB    HW: 3C8 907 336 AB
       Component: Climatic      H14 0305  
       Revision: 00009001    
       Coding: 0000000003
       Shop #: WSC 05311 115 00000
       ASAM Dataset: EV_Climatic A01005
       ROD: EV_ClimaBasis_VW46.rod
       VCID: 6D863FA1AD190E8F45B-8038
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect.        Labels:. 3C0-937-049-30-M.lbl
       Part No SW: 3C8 937 049 AA    HW: 3C8 937 049 AA
       Component: Bordnetz-SG     H57 3204  
       Revision: 00H57000    Serial number: 00000003339756
       Coding: A0900F0700041A00470A00000F000000000159435C000100000308000000
       Shop #: WSC 05124 123 12345
       VCID: 70B826D5B6ABE3676ED-8024
    
       Subsystem 1 - Part No: 3C2 955 119 C  Labels: 1KX-955-119.CLB
       Component: Wischer 191009 022  0612  
       Coding: 00046997
       Shop #: WSC 05124  
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 5N0-959-655.lbl
       Part No SW: 5N0 959 655 J    HW: 5N0 959 655 J
       Component: J234__00J VW10 HI   1916  
       Revision: 20013000    Serial number: 003E2PP3YD2Z  
       Coding: 0012362
       Shop #: WSC 05311 000 00000
       VCID: 44D0BA05D2932FC7FA5-8010
    
       Subsystem 1 - Serial number: 6332MTS633892949 
    
       Subsystem 2 - Serial number: 6342MTS658412949 
    
       Subsystem 3 - Serial number: 6351HTS6SKE829KR 
    
       Subsystem 4 - Serial number: 6361HTS6G4C729KR 
    
       Subsystem 5 - Serial number: 00000000000000000
    
       Subsystem 6 - Serial number: 00000000000000000
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel (J527)       Labels:| 3C0-953-569.clb
       Part No SW: 3C5 953 501 BP    HW: 5K0 953 569 AA
       Component: LENKS.MODUL   009 0122  
       Revision: FF010E35    Serial number: 20091105200027
       Coding: 4180270002
       Shop #: WSC 05311 115 00000
       ASAM Dataset: EV_VW360SteerWheelUDS A03002
       ROD: EV_VW360SteerWheelUDS.rod
       VCID: 74B02AC5CE33DF478A5-8020
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments (J285)       Labels:| 3C8-920-xxx-17.clb-SRI1
       Part No SW: 3C0 920 972 J    HW: 3C0 920 972 J
       Component: KOMBI         H03 0305  
       Serial number: 00000000000000
       Coding: 160F00
       Shop #: WSC 05314 115 12345
       ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04052
       ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
       VCID: 2D06FFA16D99CE8F05B-8078
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels:. 3C0-907-530-V3.clb
       Part No SW: 3C0 907 530 N    HW: 3C0 907 951 
       Component: J5
    Last edited by alexliebt; 04-08-2019 at 08:32 AM. Reason: Auto Scan too long

  2. #2
    Benevolent Dictator Uwe's Avatar
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    The following measuring values should available in that ECU:

    IDE00347-ENG167462 -- Air mass: actual value: (OBD, so likely g/s)
    IDE00350-ENG99082 -- Air mass: specified value - MAF_SP_MMV (mg/stroke)
    IDE03949-ENG103150 -- Air mass: actual value - MAF_MMV,LINEAR (mg/stroke)

    To make them easier to find, type Air mass into the search/filter box.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  4. #3
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    Thank you for info. The readings have to be taken when the engine is warm?

  5. #4
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by alexliebt View Post
    Thank you for info. The readings have to be taken when the engine is warm?
    Depends what you exactly you are trying to accomplish.

    In general, the best way on a diesel is to log specified and actual while driving under a variety of conditions.

    What makes you think you have a possible MAF failure?

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

  6. #5
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    About 2 days ago, my wife started the car in the morning and she managed to drive less then 1 mile and the car lossed the power and the engine died. She started the car few times and it happend again. 5 minutes later the car was fine, even now is alright. Iíve scan with VCDS and I canít find any fault.

  7. #6
    Benevolent Dictator Uwe's Avatar
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    A MAF failure generally won't cause the engine to die.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  9. #7
    NostraJackAss Jack@European_Parts's Avatar
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    A MAF failure generally won't cause the engine to die.

    -Uwe-
    It can but is very rare!

    This sounds like a fuel or contaminated fuel issue, would be wise to check/change filter and TV function.

    Check all ground points and battery connections!

    Check motor mounts and for torn intake/charge boots!

    LOG requested Boost versus Actual

    Address 01: Engine (J623-CAYC) Labels:. 03L-906-023-CAY.clb
    Part No SW: 03L 906 023 GL HW: 03L 906 023 A
    Component: 1,6l R4 CR td H23 5810 <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< <<<<<<<<< Update firmware needed!
    Revision: -------- Serial number: 00000000000000


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  10. #8
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    I changed all filter 2 months ago. Iím using only Shell diesel. Iíll check all the ground points.

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