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00768 - Random/Multiple Cylinder Misfire Detected

Old 04-30-2015, 08:07 PM
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Default 00768 - Random/Multiple Cylinder Misfire Detected

Hi I just scan my Audi A4 2007 with Ross tech tool
Looks that i have missfire on cilinder #3. i ready change Ignation coil and spark plug and after scaning its same error.
I try to cvange PCV valve and is same again.
Here is scan log of roos tech tool ; Any idea what can be wrong ?

:

Thursday,30,April,2015,18:50:50:62939
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: Release 12.12.0 (x64)
Data version: 20130910



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


Chassis Type: 8E (8E - Audi A4 B6/B7 (2001 > 200)
Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65
67 69 75 76 77

VIN: WAUAF78E77A132427 Mileage: 161100km/100102miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 06F-907-115-AXX.lbl
Part No SW: 8E0 910 115 P HW: 8E0 907 115 D
Component: 2.0l R4/4V TFSI 0020
Revision: 5EH14--- Serial number: XXXXXXXXXXXXXX
Coding: 0104010A02070120
Shop #: WSC 22705 444 70077
VCID: 2E53E833B9E29E6E36F-807B

2 Faults Found:
000768 - Random/Multiple Cylinder Misfire Detected
P0300 - 001 - - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 161106 km
Time Indication: 0

Freeze Frame:
RPM: 769 /min
Load: 22.7 %
Speed: 0.0 km/h
Temperature: 75.0°C
Temperature: 21.0°C
Absolute Pres.: 870.0 mbar
Voltage: 13.716 V

000771 - Cylinder 3
P0303 - 001 - Misfire Detected - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 161106 km
Time Indication: 0

Freeze Frame:
RPM: 769 /min
Load: 22.7 %
Speed: 0.0 km/h
Temperature: 75.0°C
Temperature: 21.0°C
Absolute Pres.: 870.0 mbar
Voltage: 13.716 V

Readiness: 0110 0101

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 01J-927-156.lbl
Part No SW: 8E3 910 155 M HW: 01J 927 156 HT
Component: V30 01J 2.0TFSI USA 0020
Revision: 00000009 Serial number: 00000001040330
Coding: 0000001
Shop #: WSC 06325 000 00000
VCID: 326BFC43ADDABA8E527-8067

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-910-517.clb
Part No SW: 8E0 910 517 H HW: 8E0 614 517 BF
Component: ESP8 FRONT H06 0140
Revision: 00000000 Serial number: 00000000000000
Coding: 0004525
Shop #: WSC 06325 000 00000
VCID: 2C57E23B8FFEEC7E18B-8079

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8E0-820-043.lbl
Part No: 8E0 820 043 BL
Component: A4 Klimaautomat 2833
Coding: 00000
Shop #: WSC 00000
VCID: 6CD7223B1C7E2C7E58B-5072

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 8E0-907-279-8EC.lbl
Part No: 8E0 907 279 N
Component: int. Lastmodul KAN 0907
Coding: 00014
Shop #: WSC 91588
VCID: 3D71DF7F378475F6BF5-4A9C

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8E0-959-655-94.lbl
Part No SW: 8E0 959 655 H HW: 8E0 959 655 H
Component: Airbag 9.41 H12 3840
Serial number: 0036N0G0K4E0
Coding: 0032607
Shop #: WSC 06325 000 00000
VCID: 3C77D27B7B9E7CFE88B-8069

Subsystem 1 - Part No: 8E0 910 339 B
Component: BF-Gewichtsens. 002 0070

Subsystem 2 - Serial number: 3HKHW

Subsystem 3 - Serial number: 0001.01.000000200000000000˙†63

Subsystem 4 - Serial number: 000000˙†6332DRB404264C32G˙†63

Subsystem 5 - Serial number: 64C32G˙†6342DRB404250993G˙†63

Subsystem 6 - Serial number: 50993G˙†6352ARB401BB7F1F0˙†63

Subsystem 7 - Serial number: B7F1F0˙†6362ARB401CC9AF32˙†63

Subsystem 8 - Serial number: C9AF32˙†63729RB401CD4135M˙

Subsystem 9 - Serial number: D4135M˙

Subsystem 10 - Serial number: 63829RB401CD40AC

5 Faults Found:
00532 - Supply Voltage B+
002 - Lower Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 2
Fault Frequency: 101
Reset counter: 39
Time Indication: 0
Date: 2064.00.00
Time: 00:00:00

01212 - Belt Tensioner Igniter; Rear Passenger Side (N197)
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 2
Fault Frequency: 39
Reset counter: 39
Time Indication: 0
Date: 2064.00.00
Time: 00:00:00

00003 - Control Module
014 - Defective - MIL ON
Freeze Frame:
Fault Status: 11101110
Fault Priority: 1
Fault Frequency: 1
Reset counter: 255
Time Indication: 0
Date: 2064.00.00
Time: 00:00:00

01212 - Belt Tensioner Igniter; Rear Passenger Side (N197)
001 - Upper Limit Exceeded - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 2
Fault Frequency: 15
Reset counter: 255
Time Indication: 0
Date: 2064.00.00
Time: 00:00:00

01213 - Belt Tensioner Igniter; Rear Middle (N19
001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 2
Fault Frequency: 2
Reset counter: 39
Time Indication: 0
Date: 2064.00.00
Time: 00:00:00


-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 8E0-953-549.lbl
Part No: 8E0 953 549 Q
Component: Lenksáulenmodul 0701
Coding: 02021
Shop #: WSC 06325
VCID: 4189A38F4B7C1116DBD-4A9C

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8E0-920-9xx-8EC.lbl
Part No SW: 8E0 920 951 N HW: 8E0 920 951 N
Component: KOMBI+WFS 4 H14 0200
Revision: 0200 Serial number: 00000000000000
Coding: 0020364
Shop #: WSC 91588 999 96595
VCID: 3561C75F5FB4ADB6775-5000

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 8E0-920-9xx-8EC.lbl
Part No SW: 8E0 920 951 N HW: 8E0 920 951 N
Component: KOMBI+WFS 4 H14 0200
Revision: 0200 Serial number: 00000000000000
Coding: 0020364
Shop #: WSC 91588 999 96595
VCID: 3561C75F5FB4ADB6775-5072

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 8E0-959-433-MAX.lbl
Part No: 8E0 959 433 CG
Component: Komfortgerát T7B 4135
Coding: 11880
Shop #: WSC 06325
VCID: 78FF0E6B582690DEAC3-4A9C

Subsystem 1 - Part No: 8E1959801G
Component: Tőrsteuer.FS BRM 0706

Subsystem 2 - Part No: 8E1959802G
Component: Tőrsteuer.BF BRM 0706

Subsystem 3 - Part No: 8E0959801E
Component: Tőrsteuer.HL BRM 0606

Subsystem 4 - Part No: 8E0959802E
Component: Tőrsteuer.HR BRM 0606

No fault code found.

End ---------------------------------------------------------------------
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Old 05-01-2015, 06:55 PM
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Default Re: 00768 - Random/Multiple Cylinder Misfire Detected

I had the same thing on my wife's 2007 A4. She did not recall any misfiring. I cleared the codes and checking a month later the same thing showed up.
It seems that only the ECU can detect this momentary issue.
I am waiting to actually detect a misfire before starting to be concerned.
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Old 05-01-2015, 07:25 PM
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Default Re: 00768 - Random/Multiple Cylinder Misfire Detected

I check spark plug and looks black and wet ( not working ) but when pull out and i connect ignition coils and spark plugs outside of engine and check visually. Looks that all spark plugs works . I think that is something wrong with fuel injector . ( maybe its spraying too much or is open all time ) .
Any idea ?
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Old 05-02-2015, 01:01 AM
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Default Re: 00768 - Random/Multiple Cylinder Misfire Detected

Was getting intermittent misfires under load with my 2008 2.0T; swapped coilpacks around but problem still occurred on the same cylinder. Decided to try some STP fuel injector cleaner per some other threads I had seen on various Audi forums. Seems to have resolved my misfire problem so maybe just that one injector was slightly clogged - would be worth trying on your car - cost was about $10 for one bottle.
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