Help!

[905084]

Hi all...havent posted in a while because for the most part, Thing 1 and Thing 2 have been behaving. In Seattle and on to other adventures. Thing 2 just developed a power loss when making power. Just shuts off 😕. Sometimes goes to limp mode. Engine codes are 18393,18308,17963,16502,17983,17953. None seem to be a direct correlation. Any ideas?? Thanks in advance

[nubcake]

17963 is a direct correlation (http://wiki.ross-tech.com/wiki/index.php/17963/P1555/005461).
2 last ones are also very weird (throttle control malfunction?).

[DHall1]

Ur hitting boost cut. This will tell why

Reset ecu by battery cable

restart

test drive data log 3,31,115

3rd gear pull in turbo mode 3000 to redline

report log

[905084]

Unfortunately, I don't have the tools to log...cleared all codes, started over, ran it till it went to limp mode.........these are the only codes 17983 engine mount short to +, 18393 Coolant control module, 17953 Throttle valve controller malfunction.

The 17953 code seems to be the most logical. Vag com says this can be caused by restricted airflow. Took the filters out and they were filthy. Thought I had found the problem. Unfortunately a quick trip around the block without the filter found I still have the problem although it makes ALOT more power before it shuts off. Weird.

As an aside, when I turn right from a stop and accelerate, it won't even get to 2000 rpm before it dies. When I turn left, it will run to 3500-4000 before it quits.

So confused...thanks for the help. Wish I could log it Dave.

[nubcake]

Check N75 lines (both: reference from the driver's side turbo, and control - going from N75 to actuator cans). If they have any leaks (cracks, etc) - it will cause boost overshoot. The short "dump" line can be ignored.
N75 is a brown colored 3-nipple boost control solenoid mounted on the rear of your engine below the airbox.

[905084]

Thanks, Ill look at those when I get back to Minnesota. Ordered a cable and Vag 409.1 hopefully this will allow me to look at more parameters than VCDS lite? Maybe do a throttle adaptation? Gotta love Amazon....sitting in Fargo, Vag 4091. and cable delivered today to Seattle. Pick it up and try it on the car in Minnesota Monday....hopefully it will provide some enlightenment.

[DHall1]

Owning a 14yr old RS6 can be pure bliss or Hotel California

not it having a full blown vag-com is like running across a frozen pond holding knives in your hands

i have a backup vag for my main vag.

I agree with the n75 lines but seeing the log will help a great deal

[905084]

Lol....I'm just trying to keep both of them on life support for as long as possible...ever since giving up the 3 car garage for one parking space in Seattle. I love this car and so does my wife, but she drove a P100D and went...yea.....and then I watch one absolutely destroy me...I know what is coming, just don't want to admit it yet.:rs6kiss:

[905084]

See if this works ...never logged before...straight to limp mode...thanks all...esp Dave for any insight


<colgroup><col width="64" style="width:48pt" span="16"> </colgroup><tbody>

Group A:
'003



Group B:
'031



Group C:
'115







Engine Speed
Mass Air Flow
Throttle Valve Angle
Ignition

Lambda Control
Lambda Control
Lambda Control
Lambda Control
Engine Speed
Engine Load
Boost Pressure



TIME
(G28)
(G70 + G246)
Timing Angle
TIME
Bank 1 (actual)
Bank 1 (specified)
Bank 2 (actual)
Bank 2 (specified)
TIME
(G28)

(specified)


Marker
STAMP
/min
g/s
%
°BTDC
STAMP
V
V
V
V
STAMP
/min
%
mbar
Marker



0.48
680
8
2.7
8.3
0.01
0.15
0.615
0.08
0.505
0.25
680
26.3
980




1.21
680
8
2.7
6.8
0.72
0.71
0.63
0.665
0.105
0.96
680
26.3
980




1.92
760
17.19
6.3
18.8
1.44
0.11
0.655
0.665
0.185
1.68
680
25.6
980




2.63
1400
24.11
9
28.5
2.16
0.78
0.635
0.74
0.08
2.4
1200
42.1
980




3.34
1680
36.89
12.9
29.3
2.86
0.7
0.725
0.715
0.715
3.1
1480
44.4
980




4.06
1960
49.17
15.3
30
3.58
0.25
0.7
0.72
0.7
3.82
1800
48.9
980




4.78
2040
61.19
18
30
4.3
0.74
0.72
0.79
0.77
4.54
2040
63.2
980




5.49
2320
75.53
20.4
30.8
5.02
0.73
0.235
0.71
0.295
5.24
2200
66.9
1090




6.21
2600
90.75
21.6
21
5.73
0.675
0.7
0.775
0.75
5.98
2520
75.2
1080




6.92
3040
140.64
24.3
21
6.44
0.105
0.53
0.715
0.7
6.68
2920
96.2
1370




7.64
2440
16.31
5.9
39.8
7.16
0.84
0.85
0.86
0.885
7.4
2600
21.8
980




8.37
1840
15.86
5.9
6.8
7.88
0.005
0.805
0.01
0.045
8.12
2120
17.3
980




9.06
1480
16.31
5.9
31.5
8.6
0
0.005
0
0.005
8.84
1440
23.3
980


</tbody>

[nubcake]

Clear DTCs before starting the log. And try enabling "turbo" mode for the VCDS, otherwise sample rate is too low to be meaningful.
Was this WOT?

[DHall1]

Try again. See my steps


Ur hitting boost cut. This will tell why

Reset ecu by battery cable

restart

test drive data log 3,31,115

3rd gear pull in turbo mode 3000 to redline

report log

[Bigglezworth]

Lol....I'm just trying to keep both of them on life support for as long as possible...ever since giving up the 3 car garage for one parking space in Seattle. I love this car and so does my wife, but she drove a P100D and went...yea.....and then I watch one absolutely destroy me...I know what is coming, just don't want to admit it yet.:rs6kiss:Unfair comparison. 15yr old technology against Rollsroyce electric technology that costs TEN (10) times as much.... I will enjoy performance that is only 1 sec slower to 60 for a LOT less thank you. lol

[lswing]

The Tesla's are nice, but here's a great review from Chris Harris. I've sat in one and they do feel a bit sparse and cheap inside, more like a $50k interior. I'd be tempted by one if I had a long stop light heavy commute, but overall the silence and what feels to be more of a bland car has been turning me off of them more these days. His review of how the braking messes with performance driving, along with the suspension is great input. Of course the 0-60 is amazing, but a tuned RS7 wouldn't be too far behind. Besides, the Tesla slows down at 150mph anyhow:)

<iframe width="560" height="315" src="https://www.youtube.com/embed/mHhZ9jk-DrU" frameborder="0" gesture="media" allow="encrypted-media" allowfullscreen></iframe>

[DHall1]

Screw Tesla

give me my raw V8 power and throw some turbos in for good measure.

Audi new generation has lost it for me and my daily is my Porsche. Never thought I would say that.

But another long time multi RS6 owner has recently jumped ship for a new Porsche Panamera turbo.

Dont worry. Audi will sell plenty of the crap boxes A3, Q5s to water down the brand and make it insignificant

[Aronis]

What no love for the S8 Plus????

New RS5 looks very interesting! 450/443 from V6. LOL.

Mike