ASR and MIL light

   #1  

Ken Booker

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Here is senario. I had oil leak and exhaust leak. Only issues, No fault codes or and lights.
Took Air box off and unhooked wires lines Etc. Removed and replaced oil line from oil filter housing to turbo.
Removed Cat and pipe to replace flex joint. Put it all back together and now my ASR light is on and my MIL light is on.
ASR light will not clear, but I can clear MIL and it will stay off for and few starts and then come back on.
I have double checked all air lines and electrical connectors and everything is tight and connected.
Here is complete scan. I am thinking bad MAF Sensor or possible I broke and wire at one of the connections????

HELP Please!!!

Code:
Monday,28,October,2019,11:47:02:33682
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 19.6.2.0 (x64)  HEX-V2 CB: 0.4508.4
Data version: 20190930 DS308.0
www.Ross-Tech.com


VIN: WVWDD63B45E126250   License Plate: KEN102819
Mileage: 293650km-182465mi   Repair Order: 102819



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


Chassis Type: 3B (3B - VW Passat B5 (1997 > 2005))
Scan: 01 02 03 08 15 16 17 19 35 36 37 46 47 55 56 57 58 75 76 77
         
 
VIN: WVWDD63B45E126250   Mileage: 293650km-182465miles
-------------------------------------------------------------------------------
Address 01: Engine        Labels: 06B-906-018-AWM.clb
   Part No SW: 4B0 906 018 DQ    HW:             
   Component: 1.8L R4/5VT     G   0060  
   Revision: 00000000    Serial number: VWZ7Z0D1238502
   Coding: 0016751
   Shop #: WSC 01015 444 57743
   VCID: 73B3DC4377AD11BFC45-5160

3 Faults Found:
16486 - Mass Air Flow Sensor (G70) 
            P0102 - 002 - Signal too Low - MIL ON
17544 - Fuel Trim: Bank 1 (Add) 
            P1136 - 001 - System too Lean
16555 - Fuel Trim; Bank 1 
            P0171 - 004 - System Too Lean - MIL ON
Readiness: 0000 1101

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 01V-927-156.lbl
   Part No: 3B0 927 156 CB
   Component: AG5 01V 1.8l5VT USA 0505  
   Coding: 0000102
   Shop #: WSC 01100 444 57320
   VCID: 6889BB2F3E6BE267617-5160

1 Fault Found:
18265 - Load Signal 
            P1857 - 003 - Error Message from ECU

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 4B0-614-517.lbl
   Part No: 4B0 614 517 H
   Component: ABS/ESP allrad      3428  
   Coding: 04277
   Shop #: WSC 00000  
   VCID: 2615F517F1FF341793B-51F2

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

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 C
   Component: 09 AIRBAG VW61 04   0003  
   Coding: 12345
   Shop #: WSC 05311  
   VCID: 2411EF1F87C3C6078DF-513C

1 Fault Found:
00532 - Supply Voltage B+ 
            07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 3B0-920-xx5-17.lbl
   Part No: 3B0 920 929 B
   Component: KOMBI+WEGFAHRSP VDO V07  
   Coding: 15235
   Shop #: WSC 01425  
   VCID: 2615F517F1FF341793B-513C
   WVWDD63B45E126250     VWZ7Z0D1238502

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
   Part No: 6N0 909 901 
   Component: Gateway K<->CAN    0001  
   Coding: 00006
   Shop #: WSC 05311  
   VCID: 70B9D34F03BB2AA7397-513C

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 3B7-035-1xx-56.lbl
   Part No: 3B7 035 180 G
   Component:    Radio PM6        0016  
   Coding: 00031
   Shop #: WSC 05311  
   VCID: 2411EF1F87C3C6078DF-513C

No fault code found.

End----(Elapsed Time: 05:07, VBatt start/end: 12.1V/12.1V. VIgn 12.0V)-----
 
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   #2  

Jef

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I am thinking bad MAF Sensor or possible I broke and wire at one of the connections????

Yep. The "Load Signal" is based on data from the MAF... no MAF, no Load Signal. On the MAF, /2 is power from fuse S234. This fuse powers other things but there are no codes for them, so I suspect the fuse is good... make sure the MAF /2 does have good power. /3 to T121/27, /4 to T121/53 and /5 to T121/29. If all 4 wires are to factory design, replace MAF with unit from dealer.
 
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   #3  

Ken Booker

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Thanks for help. I got into it and found broken wire to MAF. I suspected broken wire only because when I unhooked it last time I had to tug a little harder to get it unhooked (darn connectors don't unclip easy).
wire was 5 to 121/29. Repaired wire and all is good.
 
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