Issues with my 2.7t
 

Hello, on a drive today, i got the esp light and abs light up, and a sudden stop in acceleration. no problem to drive on, but the lights would not go away. did not do any heavy driving from there on and home. but did a vagcom as soon as i got home..

Friday,05,July,2013,17:09:06:15770
VCDS Version: Release 11.11.6
Data version: 20121223



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Chassis Type: 4B - Audi A6 C5
Scan: 01 02 03 06 08 15 16 17 18 22 34 35 36 37 45 55 56 57 65 67
75 76 77

Mileage: 206440km/128275miles
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Address 01: Engine Labels: 078-907-551-AZA.lbl
Part No: 4B0 907 551 G
Component: 2.7l V6/5VT G 0002
Coding: 05752
Shop #: WSC 00089
VCID: 28544E89C8CE815848B

1 Fault Found:
16486 - Mass Air Flow Sensor (G70)
P0102 - 35-00 - Signal too Low
Readiness: 0000 0000

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Address 02: Auto Trans Labels: 01V-927-156.lbl
Part No: 4B0 927 156 L
Component: AG5 01V 2.7l5VT RdW 2526
Coding: 00001
Shop #: WSC 00000
VCID: 3064A6E9F01EC99890B

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

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Address 03: ABS Brakes Labels: 8D0-907-389.lbl
Part No: 8D0 907 389 E
Component: ABS/ESP allrad D36
Coding: 06397
Shop #: WSC 02325
VCID: 356A97FD0F7CECB0C3D

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


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Address 03: ABS Brakes Labels: 8D0-907-389.lbl
Part No: 8D0 907 389 E
Component: ABS/ESP allrad D36
Coding: 06397
Shop #: WSC 02325
VCID: 356A97FD0F7CECB0C3D

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

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erased the faults, but they come back at once.

have done some search on the web, and found 2 thing it can be.

1- the abs controll unit
2- MAF

what do you guys thing it might be?!

tried to disconnect the maf while running, but no change in how the engine run....

i had my abs unit repaired for this by po before i bought the car. im not sure if its a diy or even if there is a way to check. i would remove it and send it out to be tested.

It's pretty clear from those codes that the MAF is the issue.

ABS control unit is still communicating and the only fault is that it is getting bad info from the ECU. TCU is complaining about the same thing. ECU says, the problem is bad info from the MAF.