A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D3 > D3 - Engine Bay

D3 - Engine Bay Everything under the bonnet

Reply
 
Thread Tools Display Modes
  #1  
Old 29th June 2019, 04:32 PM
Johnmed's Avatar
Johnmed Johnmed is offline
Senior Member
 
Join Date: Dec 2014
Location: Cheshire
Posts: 1,601
Default J724 turbo actuator/engine ECU/wires fault...

Hi all. Anyone encountered this? Have had a sort of limp mode situation a few times just this week. No dash lights, but feels like limp mode.

Did a scan today. Got this:

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


Address 01: Engine Labels: Redir Fail!
Control Module Part Number: 4E0 910 402 G HW: 4E0 907 401 D
Component and/or Version: 3.0L V6TDI G000AG 0030
Software Coding: 0011973
Work Shop Code: WSC 02313 785 00200
VCID: 2045FE59F3D8C29
3 Faults Found:

013128 - Control Circuit for Controller for Turbocharger 1 (J724)
P3348 - 004 - Electrical Malfunction - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 0
Fault Frequency: 8
Mileage: 260838 km
Time Indication: 0
Date: 2019.06.25
Time: 18:27:32

Freeze Frame:
RPM: 819 /min
Torque: 62.4 Nm
Speed: 23.5 km/h
Temperature: 63.0°C
Duty Cycle: 80.9 %
Voltage: 13.83 V
Duty Cycle: 12.6 %

000260 - Mass Air Flow Sensor (G70)
P0104 - 001 - Intermittent - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 1
Mileage: 260844 km
Time Indication: 0

Freeze Frame:
RPM: 168 /min
Torque: 167.7 Nm
Speed: 0.0 km/h
Duty Cycle: 80.9 %
Voltage: 9.50 V
Absolute Pres.: 999.6 mbar
(no units): 0.0

000258 - Mass Air Flow Sensor (G70)
P0102 - 001 - Signal too Low - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 1
Mileage: 260844 km
Time Indication: 0
Date: 2019.06.25
Time: 19:27:38

Freeze Frame:
RPM: 756 /min
Torque: 66.3 Nm
Speed: 0.0 km/h
Duty Cycle: 80.9 %
Voltage: 12.31 V
Absolute Pres.: 1009.8 mbar
(no units): 84.6


Readiness: 0 0 0 0 0

Ignore the MAF errors, I pulled the MAF to see if that was faulty.

So I’ve got a fault between the turbo actuator and the ECU? Can barely even see the turbo behind the engine, does anyone know where the engine ECU is located?

All the best. John.
__________________
2010 A8 SE Executive 4.2 FSI D4

2007 Mini Cooper S R56

2008 D3, gone, but not forgotten after 9 years and 90k.
Reply With Quote
  #2  
Old 12th July 2019, 12:15 PM
Johnmed's Avatar
Johnmed Johnmed is offline
Senior Member
 
Join Date: Dec 2014
Location: Cheshire
Posts: 1,601
Default

For anyone who gives a monkey’s or anyone who encounters this themselves in the future....

It’s a very common issue on VAG TDi wastegates. They get full of carbon. Actuator was having a hard time as the pivot on the waste gate had become stiff one end of its travel.

Used some turbo cleaner spray on the intake side. Expected to have to use it on the exhaust side, but haven’t needed too. Pulls like a train once more.
__________________
2010 A8 SE Executive 4.2 FSI D4

2007 Mini Cooper S R56

2008 D3, gone, but not forgotten after 9 years and 90k.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 01:18 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.