Hi guys,

This is just starting and it's not very pronounced but IT IS THERE.

When accelerating in either 3rd or 4th gear and going past 3000rpm, the car stutters just a bit. Enough for me to take notice. When I try to reproduce the problem I usually can't but it's happening every now and then.

I'm guessing one of my coil-packs is going as the last time I felt this was when I had the ECU flashed at TAPP Auto and I replaced all the coil packs to handle the increased load.

So thinking this I scanned the car but no fault was found as far as coil-packs go. Here is a copy of the scan.


Can anyone help me out?





VCDS Version: Release 10.6.1 (x64)
Data version: 20100831

Sunday,19,December,2010,17:11:28:23057

Chassis Type: 8E - Audi A4 B6/B7
Scan: 01 02 03 08 09 0F 11 15 16 17 18 36 37 45 46 55 56 57 65 67
69 75 76 77

VIN: xxxxxxxxxxxxxx Mileage: 149200km/92708miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 06B-909-518-AMB.lbl
Part No SW: 8E0 909 518 F HW: 8E0 909 018
Component: 1.8L R4/5VT G 0001
Coding: 0016701
Shop #: WSC 79410 154 402950
VCID: 336EF74C2B47

No fault code found.
Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-517.lbl
Part No: 8E0 614 517 A
Component: ABS/ESP allrad 1726
Coding: 04275
Shop #: WSC 06435
VCID: 26481E18E895

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8E0-820-043.lbl
Part No: 8E0 820 043 G
Component: A4 Klimaautomat 0712
Coding: 00000
Shop #: WSC 63351
VCID: 254A19149593

1 Fault Found:
01592 - Air Quality Sensor (G23
30-00 - Open or Short to Plus

-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 8E0-907-279-8E2.lbl
Part No: 8E0 907 279 E
Component: int. Lastmodul KAN 0305
Coding: 00004
Shop #: WSC 63351
VCID: 346CF4502E49

2 Faults Found:
01496 - Bulb for Fog-Lamps; Left (L22)
57-00 - Electric Circuit Failure
01794 - Control Module - Incorrect Chassis (VIN) Number
35-00 - -

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8E0-959-655-84.lbl
Part No: 8E0 959 655 A
Component: Airbag 8.4E 3000
Coding: 0010607
Shop #: WSC 63351 000 00000
VCID: 356AC9542533

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 8E0-953-549.lbl
Part No: 8E0 953 549 L
Component: Lenksáulenmodul 0308
Coding: 00041
Shop #: WSC 63351
VCID: 3C7CDC700619

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8E0-920-9xx-8E2.lbl
Part No: 8E0 920 900 H
Component: KOMBI+WEGFAHRS. RB4 D25
Coding: 03300
Shop #: WSC 00000
VCID: 29521524F98B
WAULC68E82A144025 AUZ6Z0A0281947

1 Fault Found:
00562 - Sensor for Oil Level/Temperature (G266)
30-00 - Open or Short to Plus

-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: 8E0-951-177.lbl
Part No: 8E0 951 177
Component: Innenraumueberw. 0504
Coding: 00001
Shop #: WSC 00000
VCID: EBDEAF2CB3F7

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 8E0-959-433-MAX.lbl
Part No: 8E0 959 433 T
Component: Komfortgerát T5B 0617
Coding: 11852
Shop #: WSC 63351
VCID: 4280A28864FD

Part No: 8E1959801E
Component: Tőrsteuer.FS BRM 0002

Part No: 8E1959802F
Component: Tőrsteuer.BF BRM 0002

Part No: 8E0959801D
Component: Tőrsteuer.HL BRM 0002

Part No: 8E0959802D
Component: Tőrsteuer.HR BRM 0002

5 Faults Found:
01616 - Signal Wire to Interior Monitor
49-10 - No Communications - Intermittent
01370 - Alarm triggered by Interior Monitoring
35-00 - -
01369 - Alarm triggered by Hood Switch
35-00 - -
01374 - Alarm triggered by Terminal 15
35-00 - -
01331 - Door Control Module; Driver Side (J386)
80-10 - Single-Wire Operation - Intermittent

-------------------------------------------------------------------------------
Address 56: Radio Labels: 8E0-035-1xx-56.lbl
Part No: 8E0 035 195 A
Component: symphony II NP2 0007
Coding: 00001
Shop #: WSC 00001
VCID: 254A19149593

1 Fault Found:
00878 - Connection to Speaker Front Left
36-10 - Open Circuit - Intermittent

End ---------------------------------------------------------------------

 

Have you asked the boys at Tapp to take a look at this ? Probably a good idea as they'll certainly be able to take care of a few of your faults. I'm a WD40/ Duct tape kind of guy so all I can think of is check your plugs, air and fuel filters ...

Good luck !

 

some people say our fuel filters should be changed every 40-60k, as part of routine maint.
i have yet to change mine, but i do intend to change it sometime this week.
if yours is old, perhaps it is a little plugged, and causing fuel issues. another possibility is the start of a vacuum leak.

 

I have a 2006 S4 and changed the filter this past summer. When I cut open the old filter I couldn't believe how dirty and clogged it looked. I read that a plugged filter could cause premature fuel pump failure. As a result I intend on changing the fuel filter every two seasons. They are not much in cost and I can post up a DIY that is very easy.

 

I changed it 2 years ago so I'm pretty sure it's not the FF.

This felt exactly like it did when I needed new coilpacks so I'm guessing it's either that, a faulty spark plug or a clogged injector. Now last time my it was my coilpacks, the CEL came on and that was because almost all the coilpacks were failing under the increased load. Would one coilpack that is just starting to fail trip the CEL? I'm asking because if it won't then it could very well be a coolpack. If it will then it may not be and I'm stuck guessing again......

Thanks for the help guys.

 

I'm going to try and done mine this spring summer for my A4 2.0t and post up a DIY with Mike

 

Is it an automatic? then it is the torque converter locking, it can happen anywhere in 2,3,4th gear and in between those gears. I've taken it to a mechanic once because my a4 kept doing it in 2nd gear around 2-3500rpm and he said it was very normal. I've searched other car forums and they all had the answer of "torque converter locking." If the issue is what i think it is, then your car doesn't have a problem.

ps. Does it stuttering include a random rpm drop of 200-400rpms?

 

it's manual tranny.....

Actually, has anyone ever removed and cleaned their injectors? If so, how did you do it? Is there a link to a write up?

With regards to a writeup for the FF here it is.

http://www.audizine.com/forum/showth...l-Filter-B6-A4

 

To remove the injectors, you need an 8mm Allen wrench. Remove the 2 Allen bolts holding the rail in place, and you can pull the rail back from the intake mani. The clips holding the injectors unplug easily, as do the electrical plugs. About a 3 minute job to take off all 4. It took me under 10 minutes to remove my stock ones and reinstall my audi TT injectors.

 

It is not fuel injectors they either work or not There is not much in between Check the electrical connectors on them