Need Help Diagnosing issue with my B8 s5 4.2fsi

   #1  

tofast2belast

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Hi Everyone, I hope someone is able to provide some input on issues that I am experiencing.
2 days ago, I ran fuel cleaner through the fuel system and afterwards, the car started and idled fine for over 30 minutes. I shut it off and cleaned up tools. went to start it back up and was quite hesitant but it started up.

I went for a drive and the engine was misfiring badly. constant bucking and misfire, the misfire were quite violent. anyway, the next day I scanned the codes(which I do not have to post because I cleared to see if it came back).

the codes were random/mult cyl misfire, cyl 5, cyl 6, and cyl 7 misfire detected. the next set of codes were fuel rail system pressure too low..
but at idle the fuel supply pressure is around 6.xBar and the High pressure rail is around 25Bar with the in-tank fuel pump at 52%

so I was going to take off the intake and test resistance on the injectors as I though maybe it was a stuck or failed injector. but I started at the HPFP.. I disconnected and disassembled these, cleaned and reassembled and put back on engine. the Cam followers showed no sign of excessive wear.

engine start up fine. still misfired slightly but cleared up for the most part. this time it felt like an ignition related misfire. scanned code and showed only cylinder 5. so down to one cylinder. I went for a drive to see if it would clear up.. which it didn't. the next code that came up was fuel rail pressure too high, outside spec.. I'm like WTF..

so I cleared it. ran adaptation(took 40 minutes to do this because it kept timing out).

so I let the car sit again with key off. about an hour later went to start it up and same thing misfire, cyl 5 and disables cylinder. with fuel rail pressure too low.. when the car warms up to Operating Temp, I shut engine off and back on and idles fine, drives fine under partial throttle. under WOT will hiccup at higher rpm.

so when engine is cold its constantly misfiring. when warm/hot it misfires less and idles normally.

I'm having hard time trying to figure out where I could start to look at to clear this up, so any help would be greatly appreciated. Auto-Scan below from this afternoon


Code:
Friday,27,November,2015,12:33:48:12681
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version 15.7.1.0 (x64)
Data version: 20150904
www.Ross-Tech.com


VIN: WAURV78T59A011130   License Plate: 
Mileage: 188660km-117227mi   Repair Order: 



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


Chassis Type: 8T (8T - Audi A5/S5/RS5 (2008 >))
Scan: 01 03 04 05 06 07 08 09 0E 0F 10 15 16 17 19 1E 36 37 3C 42
          46 47 52 53 55 56 67 6C 77
 
VIN: WAURV78T59A011130   Mileage: 188660km-117227miles
-------------------------------------------------------------------------------
Address 01: Engine (J623-CAUB)       Labels: 079-907-560-CAU.clb
   Part No SW: 8T0 907 560 K    HW: 8T0 907 560 
   Component: 4.2l V8/4V    H10 0002  
   Revision: 76H10---    
   Coding: 01140009180F0120
   Shop #: WSC 64847 128 16448
   VCID: 428B4E12DDBE582E0B-8017

3 Faults Found:
000768 - Random/Multiple Cylinder Misfire Detected 
               P0300 - 001 -  - MIL ON
             Freeze Frame:
                    Fault Status: 11100001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 188657 km
                    Time Indication: 0
                    Date: 2015.11.27
                    Time: 12:16:18

             Freeze Frame:
                    RPM: 706 /min
                    Load: 29.4 %
                    Speed: 0.0 km/h
                    Temperature: 45.0°C
                    Temperature: 42.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 13.843 V

000773 - Cylinder 5 
               P0305 - 001 - Misfire Detected - MIL ON
             Freeze Frame:
                    Fault Status: 11100001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 188657 km
                    Time Indication: 0
                    Date: 2015.11.27
                    Time: 12:16:18

             Freeze Frame:
                    RPM: 706 /min
                    Load: 29.4 %
                    Speed: 0.0 km/h
                    Temperature: 45.0°C
                    Temperature: 42.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 13.843 V

004874 - Cylinder Disabling 
               P130A - 001 - 
             Freeze Frame:
                    Fault Status: 01100001
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 255
                    Mileage: 188657 km
                    Time Indication: 0
                    Date: 2015.11.27
                    Time: 12:17:16

             Freeze Frame:
                    RPM: 3676 /min
                    Load: 39.6 %
                    Speed: 75.0 km/h
                    Temperature: 93.0°C
                    Temperature: 22.0°C
                    Absolute Pres.: 1010.0 mbar
                    Voltage: 13.970 V

Readiness: 0110 1101

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 8K0-907-379-V1.clb
   Part No SW: 8K0 907 379 AB    HW: 8K0 907 379 AB
   Component: ESP8 quattro  H04 H04 00600060  
   Coding: 110500
   Shop #: WSC 06325 000 00000
   VCID: 79F9E9FEF0E8DBF61A-802D

No Faults Found
  or DTCs not supported by controller
  or a communication error occurred

-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels: 8K0-907-064-05.clb
   Part No SW: 8K0 907 064 AG    HW: 8K0 907 064 AG
   Component: BCM2 1.1      H71 0134  
   Revision: 00002001    
   Coding: 0F0000
   Shop #: WSC 06325 000 00000
   VCID: 75E1E5CEDCF0BF967E-8021

   Subsystem 1 - Part No SW: 8T0 959 754 S    HW: 8T0 959 754 S
   Component: FBSAUDIB8 IDG  H37 0060 

   Subsystem 2 - Part No SW: 8K0 905 852 D    HW: 8K0 905 852 D
   Component: ELVAUDIB8  H36 0041 

No fault code found.

-------------------------------------------------------------------------------
Address 06: Seat Mem. Pass (J521)       Labels: 8T0-959-760.clb
   Part No SW: 8T0 959 760 B    HW: 8T0 959 760 B
   Component: MEM-BFS       H09 0043  
   Revision: AA000000    Serial number: 00001001117716
   Coding: 00017025002C00000000
   Shop #: WSC 06325 000 00000
   VCID: 428B4E12DDBE582E0B-8017

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels: Redir Fail!
   Part No SW: 8T1 820 043 AC    HW: 8T1 820 043 AC
   Component: KLIMA 3 ZONEN H06 0140  
   Revision: C1000000    Serial number: 0116.07.080364
   Coding: 48022000
   Shop #: WSC 06325 000 00000
   VCID: 72EBDED2AD9EA8AE5B-8027

3 Faults Found:
03023 - Running-in Requirement 
            005 - No or Incorrect Basic Setting / Adaptation
             Freeze Frame:
                    Fault Status: 01100101
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 74
                    Mileage: 188580 km
                    Time Indication: 0
                    Date: 2015.11.26
                    Time: 09:50:15

00256 - A/C Pressure/Temperature Sensor (G395) 
            008 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 74
                    Mileage: 188580 km
                    Time Indication: 0
                    Date: 2015.11.26
                    Time: 09:50:15

             Freeze Frame:
                    Temperature: 9.0°C

00457 - Control Module for Network (J519) 
            013 - Check DTC Memory
             Freeze Frame:
                    Fault Status: 01101101
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 74
                    Mileage: 188580 km
                    Time Indication: 0
                    Date: 2015.11.26
                    Time: 09:50:15


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels: 8K0-907-063.clb
   Part No SW: 8K0 907 063 D    HW: 8K0 907 063 D
   Component: BCM1 1.0      H22 0253  
   Revision: 05022001    Serial number: 00000000188211
   Coding: 26081095003CAF251700000300003D3D4F94138800010161000000
   Shop #: WSC 06325 000 00000
   VCID: 306F14DA6312DABEED-8065

   Subsystem 1 - Part No SW: 8T1 955 119 C    HW: 8J1 955 119   Labels: 1KX-955-119.CLB
   Component: WWS 160708  H13 0040 
   Coding: 00F531

   Subsystem 2 - Part No SW: 8K0 955 559     HW: 8K0 955 559   Labels: 8K0-955-559.CLB
   Component: RLS  H04 0003 
   Coding: 02532C

   Subsystem 3 - Part No SW: 8K0 941 531 J    HW: 8K0 941 531 J
   Component: E1 - LDS  H07 0070 

   Subsystem 4 - Part No SW: 8K0 907 410 A    HW: 8K0 907 410 A
   Component: UGDO HL US  H04 0060 

4 Faults Found:
01496 - Bulb for Fog-Lamps; Left (L22) 
            012 - Electrical Fault in Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101100
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 115
                    Mileage: 188580 km
                    Time Indication: 0
                    Date: 2015.11.26
                    Time: 18:36:00

01500 - Bulb for Fog-Lamps; Right (L23) 
            012 - Electrical Fault in Circuit - Intermittent
             Freeze Frame:
                    Fault Status: 00101100
                    Fault Priority: 2
                    Fault Frequency: 3
                    Reset counter: 115
                    Mileage: 188580 km
                    Time Indication: 0
                    Date: 2015.11.26
                    Time: 18:36:00

00256 - A/C Pressure/Temperature Sensor (G395) 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 74
                    Mileage: 188580 km
                    Time Indication: 0
                    Date: 2015.11.26
                    Time: 09:50:00

03207 - Charisma Switch Module 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 74
                    Mileage: 188580 km
                    Time Indication: 0
                    Date: 2015.11.26
                    Time: 09:50:00


-------------------------------------------------------------------------------
Address 0E: Media Player 1        Labels: 4E0-910-111.lbl
   Part No SW: 8T1 035 110 C    HW: 8T1 035 110 C
   Component: MP3-Changer     H43 0390  
   Revision: 00043003    Serial number: AUZ5ZBH8511003
   Shop #: WSC 00000 000 00000
   VCID: 2A5B06B285CEA06E23-807F

No fault code found.

-------------------------------------------------------------------------------
Address 0F: Digital Radio        Labels: 4E0-910-593-SIR.lbl
   Part No SW: 4E0 910 593 M    HW: 4E0 035 593 F
   Component: SDAR SIRIUS     H07 0160  
   Revision: 00000000    Serial number: AUZ4Z7H0372487
   Coding: 0000100
   Shop #: WSC 06325 000 00000
   VCID: 316911DEA818D3B6E2-8065

1 Fault Found:
02635 - Tuner Not Enabled/Activated 
            000 -  - 
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 74
                    Mileage: 188580 km
                    Time Indication: 0
                    Date: 2015.11.26
                    Time: 09:50:27


-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels: 8K0-919-475.clb
   Part No SW: 8K0 919 475 D    HW: 8K0 919 475 
   Component: PARKHILFE 4K  H06 0020  
   Revision: 11001001    Serial number: 52930821000661
   Coding: 200002
   Shop #: WSC 06325 000 00000
   VCID: 3A7B36F2B56E10EE53-806F

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels: 8K0-959-655.clb
   Part No SW: 8K0 959 655 C    HW: 8K0 959 655 C
   Component: AirbagVW-AU10 H26 0410  
   Serial number: 0039GD1287N$  
   Coding: 303333333730303030304A55304C38543053
   Shop #: WSC 06325 000 00000
   ASAM Dataset: EV_AirbaECUVWAUDI010 A02007
   ROD: EV_AirbaECUVWAUDI010_AU48.rod
   VCID: 3D713DEEAC4027D676-8069

   Seat occupied recognition: 
   Subsystem 1 - Part No SW: 8K0 959 339     HW: 8K0 959 339 
   Component: BF-Gewichtss.  H01 0050 
   Serial number: 5810000R0800001LF9

   Crash sensor for side airbag; driver side: 
   Serial number: 6334MSME3E36014AE

   Crash sensor for side airbag; front passenger side: 
   Serial number: 6344MSME3E155A63L

   Crash sensor for side airbag; rear; driver side: 
   Serial number: 6352QSME78767A11O

   Crash sensor for side airbag; rear; passenger side: 
   Serial number: 6362QSME78764F2F%

   Crash sensor for front airbag; driver side: 
   Serial number: 63732SME77081E575

   Crash sensor for front airbag; front passenger side: 
   Serial number: 63832SME6E7638337

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels: 8T0-920-xxx-17.clb
   Part No SW: 8T0 920 981 E    HW: 8T0 920 981 E
   Component: KOMBIINSTR.   H30 0221  
   Revision: 00000000    Serial number: 97S743R78     
   Coding: 832D01000B00D705020201
   Shop #: WSC 06325 000 00000
   VCID: 3E733AE2A9463CCE6F-806B

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136)       Labels: 8T0-959-760.clb
   Part No SW: 8T0 959 760 B    HW: 8T0 959 760 B
   Component: MEM-FS        H09 0043  
   Revision: AA000000    Serial number: 00001001116631
   Coding: 00197B25002C00000000
   Shop #: WSC 06325 000 00000
   VCID: 428B4E12DDBE582E0B-8017

No fault code found.

-------------------------------------------------------------------------------
Address 37: Navigation        Labels: 4E0-910-88x-37.lbl
   Part No SW: 4E0 910 888 M    HW: 4E0 919 887 M
   Component: MNS US          H51 1100  
   Revision: 00000000    Serial number: 341GH087510612
   Shop #: WSC 01114 444 53357
   VCID: 387F2CFA4B6202FEA5-806D

No fault code found.

-------------------------------------------------------------------------------
Address 3C: Lane Change        Labels: None
   Part No SW: 8K0 907 566 B    HW: 4L0 907 566 B
   Component: J0769_SWA_MasterH01 0050  
   Revision: 00H01000    Serial number: 6PZ 009 014-13
   Coding: 0000004
   Shop #: WSC 06325 000 00000
   VCID: 366322C24176F48EB7-8063

   Subsystem 1 - Part No: 8K0 907 568 B
   Component: J0770_SWA_Slave_H01 0050

   Subsystem 2 - Serial number: 6PZ 009 014-33

   Subsystem 3 - Serial number: 5F29.07.0800H010003CD10227ÿ

   Subsystem 4 - Serial number: D10227ÿ

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels: 8K0-907-064-46.clb
   Part No SW: 8K0 907 064 AG    HW: 8K0 907 064 AG
   Component: BCM2 1.1      H71 0134  
   Revision: 00002001    Serial number: 0113135222    
   Coding: 0106069A007A444700F000
   Shop #: WSC 06325 000 00000
   VCID: 75E1E5CEDCF0BF967E-8021

   Subsystem 1 - Part No: 8K0 959 719 
   Component: GTO BF  H06 0040 

   Subsystem 2 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HO  H03 1301 

   Subsystem 3 - Part No SW: 8R0 959 591     HW: 8R0 959 591 
   Component: J245EE16SKB10  H01 0180 

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525)       Labels: 8T0-035-223-BOM.clb
   Part No SW: 8T0 035 223 T    HW: 8T0 035 223 F
   Component: DSP Prem      H14 0400  
   Revision: 00H14003    Serial number: 34814002235801
   Coding: 030101
   Shop #: WSC 12336 024 394758
   VCID: 3F8D47E6AE4C35C664-806B

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels: 8K0-959-792.clb
   Part No SW: 8K0 959 792     HW: 8K0 959 792 
   Component: TSG BF        H09 0149  
   Revision:             Serial number:  "E
   Coding: 011C13224E002201
   Shop #: WSC 06325 000 00000
   VCID: 7CF7F0EAFFDAEEDE01-8029

1 Fault Found:
00920 - Heated Outside Mirrors; Driver Side (Z4) / Passenger Side (Z5) 
            012 - Electrical Fault in Circuit
             Freeze Frame:
                    Fault Status: 01101100
                    Fault Priority: 3
                    Fault Frequency: 2
                    Reset counter: 75
                    Mileage: 188608 km
                    Time Indication: 0
                    Date: 2015.11.27
                    Time: 06:48:37


-------------------------------------------------------------------------------
Address 53: Parking Brake (J540)       Labels: 8K0-907-801-V1.clb
   Part No SW: 8K0 907 801 E    HW: 8K0 907 801 E
   Component: EPB Audi B8   H05 0060  
   Revision: 00000003    Serial number: 00000000181836
   Shop #: WSC 00000 000 00000
   VCID: 316911DE6818D3B6E2-8065

No fault code found.

-------------------------------------------------------------------------------
Address 55: Headlight Range        Labels: 8T0-907-357.clb
   Part No SW: 8H0 907 357 A    HW: 8H0 907 357 
   Component: AFS 1           H01 0020  
   Revision: 00000001    Serial number:               
   Coding: 0000017
   Shop #: WSC 06324 000 00000
   VCID: 306F14DAA312DABEED-8065

   Subsystem 1 - Part No: 7L6 941 329 A
   Component: AFS-Modul links H07 0004

   Subsystem 2 - Part No: 7L6 941 329 A
   Component: AFS-Modul rechtsH07 0004

No fault code found.

-------------------------------------------------------------------------------
Address 67: Voice Control        Labels: 4E0-910-75x-67.lbl
   Part No SW: 4E0 910 754 Q    HW: 4E0 035 753 A
   Component: SDS 3501 US     H46 0630  
   Revision: 00000000    Serial number: 00000807080620
   Shop #: WSC 12336 024 394758
   VCID: 346718CA570AE69E89-8061

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam.        Labels: 8T0-907-441.clb
   Part No SW: 8T0 907 441 B    HW: 4L0 907 441 A
   Component: J772__Rearview      0070  
   Revision: --H12---    Serial number: 525PA8-J879083
   Coding: 1000008
   Shop #: WSC 06325 000 00000
   VCID: 377D2FC6467C0D86AC-8063

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone        Labels: 4E0-910-336.lbl
   Part No SW: 4F0 910 336 H    HW: 4E0 862 335 
   Component: Handyvorb2      H20 1130  
   Revision: 00000000    Serial number: 00000005053055
   Coding: 0010970
   Shop #: WSC 06325 000 00000
   VCID: 285FFCBA9BC2927E35-807D

No fault code found.

End-------------------------(Elapsed Time: 05:48)--------------------------
 
   #2  

DrPeter

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Hello,

I would remove the spark plugs, have a look at what the show. Are they wet, carbon fouled, etc?

The last time(2 weeks ago) I saw the [Cylinder Disabling] fault code was on a CCTA, the #4 injector was leaking, causing a misfire and low rail fuel pressure.

So I would imagine the chemical you added may have done some damage to the High Pressure Fuel system. I would recommend NOT to use any 'injector' cleaners.

They do make very inexpensive USB mini cameras that you can buy and use to see inside the combustion chamber to see if the fuel injector is leaking.

bCapOU5.jpg


---> I would NOT drive or start the vehicle anymore than needed, you may be causing damage to the cylinder bores by washing down the oil with raw fuel and the excessive fuel in the exhaust could cause catalytic converter damage!

Hope this helps,

drpeter
 
   #3  

Jack@European_Parts

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Compression check all cylinders for comparison.

Ground issues across banks for all coil packs insufficient.

Plugs damaged , coil packs or fuel injector damaged. w
Swap component locations to see if miss moves for isolation tests verifying problem.


FYI: Fuel to high DTC can be from a cylinder shut down raising overall rail PSI.

In order to counter act the washing of the rings in the cylinders.
Consider filling oil in them and cranking over, then let them sit for a while to reseal the rings.


Installing hot heat range spark plugs for winter operation ( one range hotter ) in all the VW-Audi NA engines makes a significant improvement in starting, and corrects misfire issues.
 
Last edited:
   #4  

tofast2belast

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Compression check all cylinders for comparison.

Ground issues across banks for all coil packs insufficient.

Plugs damaged , coil packs or fuel injector damaged. w
Swap component locations to see if miss moves for isolation tests verifying problem.


FYI: Fuel to high DTC can be from a cylinder shut down raising overall rail PSI.

In order to counter act the washing of the rings in the cylinders.
Consider filling oil in them and cranking over, then let them sit for a while to reseal the rings.


Installing hot heat range spark plugs for winter operation ( one range hotter ) in all the VW-Audi NA engines makes a significant improvement in starting, and corrects misfire issues.

checked plugs and swapped cyl5(misfiring cylinder) as well as swapped coils and misfire constant with cylinder 5..

the misfire almost disappears when engine has fully warmed up and I shut the car off and back on. it will misfire under load and anything above partial(say 25% throttle)...

the fuel pressure code I get is low pressure..

but when going in "OBDII" function for generic OBD scan I get a pending code for n276 mechanical fault fuel pressure regulator... but it wont show this in the engine module 01 for fault scan or even in autoscan..

suppose because its pending??? but then I thought it would still pop up but say not confirmed
 
   #5  

Jack@European_Parts

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Dude what did you expect from OBD ( JEW )? WTF are you in there for anyway when you have VCDS? ;)

Carbon build up requires remediation?

Fuel PSI sensors are a known issue and lift pumps also shit the bed often.

Be sure to check FPR incorporated fuel filter.
 
   #6  

tofast2belast

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Dude what did you expect from OBD ( JEW )? WTF are you in there for anyway when you have VCDS? ;)

Carbon build up requires remediation?

Fuel PSI sensors are a known issue and lift pumps also shit the bed often.

Be sure to check FPR incorporated fuel filter.


Jack I hope you are not referring or labeling me as a "JEW" I know this is a forum for which users and enthusiasts alike can join and help each other out. we have never met so there's no reason to start off as that...

If you read my post, I was in VCDS first then went to OBD to see if it saw something different, and it did. it showed a pending fault for n276 mechanical malfunction. VCDS engine module fault code did not show this..

so why should it be a problem to exhaust all possible OBD diagnostics available to me to scan the vehicle?

had carbon cleaning done 2 months ago(~1500MILES) via Media blasting.
on a second note...

yesterday afternoon. from cold start... the engine did not misfire as it has been. idled and drove fine from partial to ~50%-75% throttle. once it warmed up I did a WOT. first time to redline drove fine. second time it hiccupped a few times but not enough to log a misfire or any other fault... third time it triggered the EPC light and went limp... scanned car, fuel pressure system low again, but no misfire present..

I am putting this in BOLD to make it known... I would run MVB logging and or ADVANCED MEASURING DATA LOGGING, but for another issue I am experiencing which is noted in another thread on this forum, is that I cannot get a constant connection between VCDS and the OBD system.. I am experiencing too many communication errors for it to be consistent.
 
   #7  

Jack@European_Parts

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Jack I hope you are not referring or labeling me as a "JEW" I know this is a forum for which users and enthusiasts alike can join and help each other out. we have never met so there's no reason to start off as that...

Nope...........Look up my name........

If you read my post, I was in VCDS first then went to OBD to see if it saw something different, and it did. it showed a pending fault for n276 mechanical malfunction. VCDS engine module fault code did not show this..


It tells me your car is not stock "possibly"......profile like "TOFAST2BELAST" is a sort of........a tell.

yesterday afternoon. from cold start... the engine did not misfire as it has been. idled and drove fine from partial to ~50%-75% throttle. once it warmed up I did a WOT. first time to redline drove fine. second time it hiccupped a few times but not enough to log a misfire or any other fault... third time it triggered the EPC light and went limp... scanned car, fuel pressure system low again, but no misfire present..

Maybe poor ground issue to coil packs ......I recommend you overlay, and run redundant grounds to both, at each coil pack to battery.
 
Last edited:
   #8  

tofast2belast

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Nope...........Look up my name........




It tells me your car is not stock "possibly"......profile like "TOFAST2BELAST" is a sort of........a tell.



Maybe poor ground issue to coil packs ......I recommend you overlay, and run redundant grounds to both, at each coil pack to battery.


car is completely stock... other than exhaust but everything else is completely stock. my name has nothing to do with how my car sits.
 
   #9  

ivagp

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you do have a cool name, but get ur connectivity issue fixed and get some logs of fuel trims on short and long, cold and hot. what kind of air cleaner and have u cleaned the mass sensor. can u explain how u cleaned the intake. also do a log of the air mass. u state fuel press at idle can u give us at full throttle. im thinking u have a bad injector or ur intake needs to be recleaned
 
   #10  

Jack@European_Parts

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car is completely stock... other than exhaust but everything else is completely stock. my name has nothing to do with how my car sits.


Well sure it does........ and when it comes to qualifications or creditability, you don't exactly shine in this thin skinned politically correct thread.......have fun.
 
   #11  

ivagp

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can we just get the facts and nothing but the facts so you know who can help us.
 
   #12  

Jack@European_Parts

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So what was the reason for fuel cleaner and was this done only in rail or intake system or both and with what?

To have codes in OBD2 and not VAG side is not right or something is FOD........in stack.
 
   #13  

ivagp

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cleaning thru the intake is a big gamble considering how much an engine could cost. now their even selling one for diesel intakes. what do u think jack
 
   #14  

Jack@European_Parts

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cleaning thru the intake is a big gamble considering how much an engine could cost. now their even selling one for diesel intakes. what do u think jack

I like cleaning with non flammable biodegradable solvent mixed with water in the diesels........ that turns the carbon into a soft moveable material through the combustion chamber,........ one that the valves can deal with and not get stuck open during operation.

I have had great luck with specific things I first experimented with on the ALH and now use on PD and CR engine's.

Never have been fond of a flammable material, or pooling in intakes with fluids to bend a rod.

I did like walnut shells, however, rarely see it done anymore, and isn't so great for flaps.


Manual cleaning is the best.........and often is met with apprehension for DPF or this carbon remediation by the lazy.
Then there are the people brainwashed by the magic oils, creams and chemicals.

If the idiots are that lazy and want to jerk off with the gels and creams, to only want an OBD answer; further thinking VCDS should do this or the forum collective.......... than get the fuck out of the business and forum asshole......I say fuck'em.
 
   #15  

tofast2belast

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here is a one log I did. of you look at the WOT pass, in the logs between marker 3 and 4 starts showing difference between requested and actual pressure. but what I noticed is when it reaches rev limiter, the pressure resumes to around what's requested..

in spots where Mass airflow reads "0" is when it tries to re-establish communication with modules.. this is the connection errors I have when data logging..
The low pressure side, seems consistent so, is there a way to rule out the high pressure fuel sensor?

Code:
Thursday 3 December 2015 07:56:00:12681-VCID:428B4E12DDBE582E0B-8017 VCDS Version: Release 15.7.1 (x64) Data version: 20150904
8T0 907 560 K ADVMB 4.2l V8/4V H10 0002
G001​
F0​
G001​
F2​
G001​
F3​
G002​
F2​
G002​
F3​
G003​
F2​
G003​
F3​
G103​
F0​
G140​
F1​
G140​
Marker​
TIME​
grp 1 - Field 0​
TIME​
grp 1 - Field 2​
TIME​
grp 1 - Field 3​
TIME​
grp 2 - Field 2​
TIME​
Grp2 - Field 3​
TIME​
grp3 - Field 2​
TIME​
Grp3- Field 3​
TIME​
grp103-Field 0​
TIME​
grp 140 - Field 1​
TIME​
grp 140 - Field 2​
STAMP​
Engine Speed - (G28)​
STAMP​
Lambda Ctrl-Bnk1​
STAMP​
Lambda Ctrl-Bnk2​
STAMP​
Injection Timing​
STAMP​
Mass Air Flow - Sensor (G70)​
STAMP​
Throttle Valve Angle​
STAMP​
Ignition - Timing Angle​
STAMP​
Current - Fuel Pressure​
STAMP​
Rail Pressure - (specified)​
STAMP​
Rail Pressure - (actual)​
/min​
%​
%​
ms​
g/s​
%​
°BTDC​
bar​
bar​
bar​
209.55​
2760​
209.55​
3.1​
209.55​
3.9​
209.59​
0.77​
209.59​
20.31​
209.64​
5.9​
209.64​
41.3​
209.45​
6.11​
209.5​
38.49​
209.5​
39.47​
209.79​
2760​
209.79​
3.9​
209.79​
3.9​
209.84​
0.77​
209.84​
20.94​
209.88​
5.9​
209.88​
41.3​
209.69​
6.12​
209.74​
38.49​
209.74​
38.97​
210.05​
2760​
210.05​
4.7​
210.05​
5.5​
210.1​
0.77​
210.1​
22.58​
210.15​
6.3​
210.15​
41.3​
209.96​
6.12​
210​
39.81​
210​
38.25​
210.29​
2760​
210.29​
3.1​
210.29​
1.2​
210.34​
0.77​
210.34​
22.44​
210.39​
5.9​
210.39​
40.5​
210.2​
6.05​
210.24​
39.81​
210.24​
38.67​
210.56​
2800​
210.56​
-0.4​
210.56​
210.6​
0.77​
210.6​
21.89​
210.65​
6.3​
210.65​
41.3​
210.46​
6.01​
210.51​
39.97​
210.51​
39.45​
210.8​
2800​
210.8​
-0.8​
210.8​
2​
210.85​
0.77​
210.85​
24.53​
210.9​
7.5​
210.9​
40.5​
210.7​
6.06​
210.75​
39.99​
210.75​
40.82​
3​
211.06​
2800​
211.06​
1.2​
211.06​
2.7​
211.11​
1.53​
211.11​
73.56​
211.16​
19.2​
211.16​
24​
210.95​
6.09​
211.02​
46.52​
211.02​
43.04​
211.31​
2920​
211.31​
211.31​
211.36​
2.04​
211.36​
66​
211.41​
21.6​
211.41​
21​
211.21​
5.7​
211.27​
77.3​
211.27​
61.5​
211.57​
3120​
211.57​
211.57​
211.62​
3.83​
211.62​
126.17​
211.66​
63.9​
211.66​
15.8​
211.46​
5.75​
211.53​
88.15​
211.53​
61.26​
211.82​
3320​
211.82​
211.82​
211.86​
4.84​
211.86​
130.83​
211.92​
99.6​
211.92​
18.8​
211.71​
5.65​
211.76​
92.7​
211.76​
59.82​
212.08​
3560​
212.08​
-0.8​
212.08​
-0.8​
212.13​
5.36​
212.13​
159.22​
212.18​
99.6​
212.18​
21​
211.96​
7.62​
212.01​
95.4​
212.01​
46.13​
212.32​
3800​
212.32​
-1.6​
212.32​
-2.3​
212.37​
6.63​
212.37​
158.11​
212.42​
99.6​
212.42​
21​
212.22​
7.29​
212.28​
98.51​
212.28​
36.89​
212.6​
4040​
212.6​
-1.6​
212.6​
-2.7​
212.65​
7.4​
212.65​
190.44​
212.7​
99.6​
212.7​
20.3​
212.47​
7.2​
212.51​
101.06​
212.51​
27.41​
212.84​
4280​
212.84​
1.6​
212.84​
0.4​
212.89​
7.65​
212.89​
165.94​
212.94​
99.6​
212.94​
19.5​
212.74​
7.12​
212.79​
101.92​
212.79​
22.37​
213.11​
4560​
213.11​
5.5​
213.11​
3.9​
213.16​
9.44​
213.16​
182.28​
213.2​
99.6​
213.2​
22.5​
212.98​
7.15​
213.03​
103.15​
213.03​
17.35​
213.35​
4760​
213.35​
6.6​
213.35​
5.1​
213.4​
10.2​
213.4​
201.67​
213.45​
99.6​
213.45​
25.5​
213.25​
7.12​
213.3​
104.32​
213.3​
16.31​
213.62​
4960​
213.62​
9.8​
213.62​
10.9​
213.66​
9.44​
213.66​
207.44​
213.71​
99.6​
213.71​
22.5​
213.5​
7.11​
213.55​
105​
213.55​
17.82​
213.87​
5160​
213.87​
10.2​
213.87​
21.9​
213.92​
8.93​
213.92​
208.67​
213.97​
99.6​
213.97​
23.3​
213.77​
7.32​
213.82​
105​
213.82​
20.71​
214.13​
5400​
214.13​
7.4​
214.13​
25​
214.17​
9.95​
214.17​
227.44​
214.22​
99.6​
214.22​
24​
214.02​
7.38​
214.07​
105​
214.07​
22.29​
214.39​
5560​
214.39​
5.1​
214.39​
25​
214.42​
7.91​
214.42​
221.44​
214.47​
99.6​
214.47​
30.8​
214.27​
7.46​
214.32​
105​
214.32​
23.52​
214.62​
5680​
214.62​
2.7​
214.62​
25​
214.68​
9.18​
214.68​
224.81​
214.73​
99.6​
214.73​
28.5​
214.52​
7.41​
214.56​
105​
214.56​
23.31​
214.88​
5920​
214.88​
214.88​
25​
214.93​
6.88​
214.93​
229.22​
214.97​
99.6​
214.97​
28.5​
214.78​
7.35​
214.83​
105​
214.83​
24.95​
215.13​
6080​
215.13​
-1.6​
215.13​
22.3​
215.24​
6.38​
215.24​
226.61​
215.3​
99.6​
215.3​
33​
215.02​
7.21​
215.08​
105​
215.08​
24.59​
215.45​
6280​
215.45​
-2.7​
215.45​
19.1​
215.5​
6.38​
215.5​
222.97​
215.54​
99.6​
215.54​
27.8​
215.35​
6.89​
215.4​
105​
215.4​
25.19​
215.7​
6440​
215.7​
-2.7​
215.7​
16.8​
215.77​
7.4​
215.77​
230.92​
215.82​
99.6​
215.82​
30​
215.59​
6.88​
215.64​
105​
215.64​
24.99​
215.97​
6600​
215.97​
-2.3​
215.97​
14.1​
216.02​
5.87​
216.02​
229.06​
216.07​
99.6​
216.07​
33.8​
215.86​
6.87​
215.92​
105​
215.92​
24.78​
216.22​
6760​
216.22​
-3.1​
216.22​
11.7​
216.28​
5.36​
216.28​
234.86​
216.33​
99.6​
216.33​
34.5​
216.12​
6.81​
216.17​
105​
216.17​
27.46​
216.49​
6920​
216.49​
-4.7​
216.49​
9​
216.54​
5.61​
216.54​
231.25​
216.59​
99.6​
216.59​
35.3​
216.38​
6.75​
216.43​
105​
216.43​
30.47​
216.75​
7080​
216.75​
-5.1​
216.75​
6.3​
216.83​
4.59​
216.83​
234.17​
216.88​
99.6​
216.88​
36​
216.64​
6.77​
216.69​
105​
216.69​
34.93​
217.03​
7200​
217.03​
-4.7​
217.03​
3.9​
217.08​
3.83​
217.08​
213.42​
217.13​
52.9​
217.13​
33.8​
216.93​
6.82​
216.99​
105​
216.99​
36.48​
217.28​
7320​
217.28​
-5.5​
217.28​
1.2​
217.34​
3.31​
217.34​
209.94​
217.4​
47.5​
217.4​
32.3​
217.18​
6.85​
217.23​
105​
217.23​
49.5​
217.55​
7240​
217.55​
217.55​
0​
217.6​
217.6​
205.64​
217.65​
42.4​
217.65​
29.3​
217.45​
6.56​
217.51​
105​
217.51​
90.97​
217.8​
7440​
217.8​
-0.4​
217.8​
0.8​
217.86​
2.04​
217.86​
171.94​
217.91​
36.9​
217.91​
20.3​
217.7​
7.2​
217.76​
105​
217.76​
117.26​
218.06​
7240​
218.06​
218.06​
218.11​
1.53​
218.11​
167.22​
218.16​
32.2​
218.16​
17.3​
217.96​
7.35​
218.01​
105​
218.01​
118.25​
218.31​
7120​
218.31​
-9​
218.31​
-11.3​
218.37​
0.77​
218.37​
67.22​
218.42​
16.1​
218.42​
15.8​
218.21​
7.52​
218.26​
73.06​
218.26​
116.7​
218.57​
7000​
218.57​
-13.7​
218.57​
-18.4​
218.62​
0.77​
218.62​
66.69​
218.67​
14.9​
218.67​
15.8​
218.48​
7.58​
218.53​
34.97​
218.53​
117.16​
218.83​
6720​
218.83​
-17.2​
218.83​
-21.1​
218.89​
0.51​
218.89​
61.56​
218.94​
14.5​
218.94​
12.8​
218.73​
6.99​
218.77​
31​
218.77​
117.12​
219.1​
6320​
219.1​
-19.1​
219.1​
-21.5​
219.15​
0.51​
219.15​
56.22​
219.2​
13.3​
219.2​
15.8​
218.99​
6.77​
219.04​
30.71​
219.04​
116.48​
219.34​
5880​
219.34​
-8.2​
219.34​
-5.1​
219.4​
0.51​
219.4​
50.75​
219.45​
12.2​
219.45​
11.3​
219.25​
6.89​
219.29​
30.37​
219.29​
98.85​
219.6​
5480​
219.6​
-2.7​
219.6​
-7​
219.64​
0.51​
219.64​
43.94​
219.69​
11​
219.69​
15​
219.49​
7.12​
219.54​
30.08​
219.54​
66.96​
219.85​
4840​
219.85​
-0.4​
219.85​
-3.1​
219.9​
1.02​
219.9​
61.42​
219.95​
14.9​
219.95​
18.8​
219.74​
6.9​
219.79​
37.86​
219.79​
58.95​
220.1​
4800​
220.1​
-4.7​
220.1​
-8.2​
220.15​
1.02​
220.15​
64.22​
220.2​
15.7​
220.2​
36.8​
220​
6.45​
220.04​
66.59​
220.04​
78.22​
220.34​
4800​
220.34​
-4.7​
220.34​
-5.1​
220.39​
1.02​
220.39​
75.03​
220.46​
16.5​
220.46​
35.3​
220.24​
6.48​
220.29​
72.37​
220.29​
78.95​
220.61​
4760​
220.61​
-2.3​
220.61​
-5.1​
220.67​
1.02​
220.67​
70.92​
220.71​
16.1​
220.71​
35.3​
220.51​
6.64​
220.55​
72.27​
220.55​
78.55​
220.85​
4760​
220.85​
-3.5​
220.85​
-6.6​
220.91​
1.02​
220.91​
74.56​
220.97​
16.1​
220.97​
27​
220.76​
6.61​
220.81​
72.24​
220.81​
76.9​
221.13​
4720​
221.13​
-3.1​
221.13​
-6.3​
221.19​
1.02​
221.19​
69.22​
221.24​
17.3​
221.24​
35.3​
221.02​
6.65​
221.07​
72.21​
221.07​
74.8​
221.38​
4720​
221.38​
-3.5​
221.38​
-4.3​
221.43​
1.28​
221.43​
80.22​
221.5​
17.6​
221.5​
30​
221.28​
6.68​
221.33​
76.78​
221.33​
76.16​
221.65​
4720​
221.65​
-0.4​
221.65​
-3.5​
221.7​
1.28​
221.7​
81.56​
221.75​
17.6​
221.75​
22.5​
221.55​
6.57​
221.6​
76.71​
221.6​
76.56​
221.9​
4720​
221.9​
-0.4​
221.9​
-3.1​
221.95​
1.28​
221.95​
81.42​
222.01​
17.6​
222.01​
21.8​
221.8​
6.56​
221.85​
76.72​
221.85​
77.43​
222.16​
4680​
222.16​
-2.3​
222.16​
-5.1​
222.21​
1.28​
222.21​
71.14​
222.26​
13.3​
222.26​
29.3​
222.06​
6.62​
222.11​
75.83​
222.11​
76.31​
222.41​
4680​
222.41​
222.41​
222.62​
0.77​
222.62​
41.89​
222.68​
11​
222.68​
45.8​
222.31​
6.71​
222.36​
56.73​
222.36​
67​
222.82​
4600​
222.82​
222.82​
222.87​
0.51​
222.87​
31.86​
222.91​
8.2​
222.91​
27​
222.73​
6.7​
222.77​
42.81​
222.77​
54.26​
223.06​
4520​
223.06​
5.1​
223.06​
2.7​
223.11​
0.51​
223.11​
28.75​
223.16​
8.2​
223.16​
30.8​
222.96​
6.64​
223.01​
36.26​
223.01​
44.14​
223.32​
4520​
223.32​
1.2​
223.32​
5.9​
223.37​
0.51​
223.37​
29.14​
223.41​
8.2​
223.41​
44.3​
223.22​
6.46​
223.27​
36.18​
223.27​
43.41​
223.56​
4440​
223.56​
3.1​
223.56​
7.4​
223.61​
0.51​
223.61​
29.36​
223.81​
8.2​
223.81​
34.5​
223.46​
6.36​
223.52​
36​
223.52​
41.76​
4​
223.97​
4360​
223.97​
12.5​
223.97​
4.7​
224.03​
0.51​
224.03​
28.56​
224.07​
7.8​
224.07​
47.3​
223.88​
6.35​
223.93​
35.76​
223.93​
39.83​
224.22​
4280​
224.22​
8.6​
224.22​
10.5​
224.27​
0.51​
224.27​
26.92​
224.32​
7.8​
224.32​
47.3​
224.12​
6.39​
224.17​
35.65​
224.17​
38.73​
224.47​
4240​
224.47​
9​
224.47​
10.5​
224.52​
0.51​
224.52​
30.03​
224.57​
7.8​
224.57​
46.5​
224.38​
6.34​
224.43​
36.58​
224.43​
38.06​
224.71​
4200​
224.71​
12.5​
224.71​
3.9​
224.75​
0.51​
224.75​
29.44​
224.81​
8.2​
224.81​
46.5​
224.61​
6.34​
224.66​
37.52​
224.66​
37.97​
224.96​
4160​
224.96​
11.3​
224.96​
4.7​
225.01​
0.51​
225.01​
28.58​
225.07​
7.8​
225.07​
45.8​
224.85​
6.32​
224.91​
37.32​
224.91​
37.58​
225.2​
4120​
225.2​
2.7​
225.2​
7.8​
225.27​
0.51​
225.27​
225.32​
7.8​
225.32​
45​
225.11​
6.35​
225.16​
37.26​
225.16​
37.22​
225.48​
4040​
225.48​
225.48​
6.3​
225.53​
0.51​
225.53​
27.89​
225.58​
8.6​
225.58​
45​
225.37​
6.35​
225.44​
37.07​
225.44​
36.1​
225.73​
4000​
225.73​
3.9​
225.73​
-0.4​
225.78​
0.77​
225.78​
35.08​
225.83​
9​
225.83​
42​
225.63​
6.29​
225.68​
43.34​
225.68​
42.45​
225.99​
3960​
225.99​
3.9​
225.99​
-1.2​
226.04​
0.51​
226.04​
32.39​
226.1​
8.6​
226.1​
42​
225.88​
6.3​
225.93​
43.2​
225.93​
42.06​
226.24​
3920​
226.24​
-2​
226.24​
3.9​
226.29​
0.77​
226.29​
32.31​
226.35​
8.6​
226.35​
42​
226.14​
6.26​
226.19​
43.02​
226.19​
42.06​
226.5​
3880​
226.5​
3.9​
226.5​
-0.8​
226.55​
0.77​
226.55​
31.92​
226.6​
8.6​
226.6​
42​
226.39​
6.28​
226.44​
42.91​
226.44​
41.88​
226.75​
3840​
226.75​
4.7​
226.75​
226.8​
0.51​
226.8​
29.64​
226.85​
8.2​
226.85​
42.8​
226.65​
6.27​
226.7​
42.86​
226.7​
42.15​
227.01​
3800​
227.01​
227.01​
6.3​
227.06​
0.77​
227.06​
32.22​
227.11​
8.6​
227.11​
42​
226.9​
6.34​
226.95​
44.36​
226.95​
42.91​
227.26​
3760​
227.26​
-0.8​
227.26​
3.9​
227.31​
0.77​
227.31​
38.08​
227.36​
9.4​
227.36​
39​
227.16​
6.3​
227.21​
51.18​
227.21​
48.2​
227.5​
3720​
227.5​
2.3​
227.5​
-2​
227.56​
0.77​
227.56​
36.64​
227.61​
9.4​
227.61​
39​
227.41​
6.22​
227.45​
50.99​
227.45​
49.47​
227.76​
3720​
227.76​
0.8​
227.76​
-3.1​
227.81​
0.77​
227.81​
35.36​
227.85​
9.4​
227.85​
39​
227.67​
6.28​
227.71​
50.94​
227.71​
50.06​
228​
3680​
228​
-5.5​
228​
1.6​
228.06​
0.77​
228.06​
34.64​
228.11​
9.4​
228.11​
39​
227.91​
6.34​
227.95​
50.9​
227.95​
50.93​
228.26​
3640​
228.26​
1.6​
228.26​
-2.3​
228.31​
0.77​
228.31​
36.17​
228.36​
9.4​
228.36​
38.3​
228.16​
6.3​
228.21​
50.77​
228.21​
50.4​
228.51​
3640​
228.51​
0.4​
228.51​
-3.1​
228.58​
0.77​
228.58​
34.14​
228.62​
9.4​
228.62​
39​
228.41​
6.22​
228.46​
50.65​
228.46​
50.66​
228.77​
3600​
228.77​
-6.3​
228.77​
1.2​
228.81​
0.77​
228.81​
33.5​
228.86​
11.4​
228.86​
38.3​
228.67​
6.25​
228.72​
50.64​
228.72​
50.84​
229.01​
3560​
229.01​
-5.9​
229.01​
-0.8​
229.06​
1.02​
229.06​
37.75​
229.12​
6.7​
229.12​
36.8​
228.91​
6.12​
228.97​
59.5​
228.97​
57.68​
229.26​
3520​
229.26​
-2.3​
229.26​
-7.4​
229.31​
0.77​
229.31​
31.47​
229.37​
9​
229.37​
42​
229.16​
6.26​
229.22​
43.11​
229.22​
48.51​
229.51​
3520​
229.51​
-2​
229.51​
-6.6​
229.56​
0.77​
229.56​
29.39​
229.61​
7.8​
229.61​
41.3​
229.41​
6.32​
229.47​
45.69​
229.47​
47.55​
229.76​
3520​
229.76​
-7.4​
229.76​
-1.6​
229.82​
0.77​
229.82​
40.25​
229.87​
11​
229.87​
38.3​
229.67​
6.3​
229.72​
48​
229.72​
49.86​
230.01​
3480​
230.01​
-11.7​
230.01​
-6.6​
230.07​
1.02​
230.07​
40.97​
230.12​
11​
230.12​
34.5​
229.91​
6.19​
229.96​
61.7​
229.96​
56.1​
230.28​
3480​
230.28​
-12.9​
230.28​
-11.7​
230.33​
1.02​
230.33​
46.25​
230.38​
12.2​
230.38​
33​
230.18​
6.11​
230.23​
64.48​
230.23​
59.92​
230.54​
3440​
230.54​
-13.7​
230.54​
-5.5​
230.57​
1.02​
230.57​
44.22​
230.62​
12.2​
230.62​
33​
230.43​
6.23​
230.47​
64.24​
230.47​
61.22​
230.78​
3400​
230.78​
-11.3​
230.78​
-4.7​
230.82​
1.28​
230.82​
44.11​
230.87​
8.6​
230.87​
33​
230.67​
6.24​
230.73​
67.03​
230.73​
62.15​
231.02​
3360​
231.02​
-4.7​
231.02​
-7​
231.07​
0.77​
231.07​
27.17​
231.12​
11.4​
231.12​
41.3​
230.92​
6.26​
230.97​
50.5​
230.97​
57.04​
231.28​
3360​
231.28​
-2​
231.28​
-3.5​
231.33​
1.02​
231.33​
38.58​
231.38​
10.6​
231.38​
36​
231.17​
6.36​
231.24​
58.1​
231.24​
57.75​
231.53​
3360​
231.53​
-8.6​
231.53​
-1.6​
231.57​
0.77​
231.57​
36.44​
231.62​
10.6​
231.62​
36​
231.43​
6.17​
231.48​
57.96​
231.48​
57.52​
231.77​
3360​
231.77​
-8.2​
231.77​
-0.8​
231.83​
1.02​
231.83​
37.56​
231.87​
10.6​
231.87​
36​
231.67​
6.24​
231.71​
57.96​
231.71​
57.57​
232.01​
3320​
232.01​
-2.7​
232.01​
-4.7​
232.06​
1.02​
232.06​
37.22​
232.11​
10.6​
232.11​
36​
231.92​
6.19​
231.96​
57.8​
231.96​
57.37​
232.25​
3320​
232.25​
-1.6​
232.25​
-3.9​
232.32​
1.02​
232.32​
39.75​
232.36​
11​
232.36​
35.3​
232.16​
6.19​
232.21​
59.67​
232.21​
59.03​
232.51​
3320​
232.51​
-7.4​
232.51​
-0.8​
232.55​
1.02​
232.55​
39.47​
232.61​
11​
232.61​
35.3​
232.41​
6.15​
232.46​
59.5​
232.46​
58.43​
232.74​
3280​
232.74​
-8.2​
232.74​
-0.8​
232.8​
1.02​
232.8​
39.08​
232.86​
11​
232.86​
35.3​
232.65​
6.2​
232.7​
59.39​
232.7​
58.18​
233.01​
3240​
233.01​
-2.3​
233.01​
-3.9​
233.05​
1.02​
233.05​
38.61​
233.11​
11​
233.11​
35.3​
232.91​
6.2​
232.96​
59.28​
232.96​
59.27​
233.25​
3240​
233.25​
-7.4​
233.25​
233.3​
1.02​
233.3​
40.5​
233.35​
11​
233.35​
33.8​
233.16​
6.16​
233.21​
60.13​
233.21​
60.27​
233.52​
3240​
233.52​
-7​
233.52​
-0.8​
233.58​
1.02​
233.58​
43.33​
233.63​
11.8​
233.63​
33​
233.42​
6.12​
233.48​
62.07​
233.48​
60.52​
233.77​
3200​
233.77​
-2.3​
233.77​
-4.7​
233.83​
1.28​
233.83​
55.03​
233.87​
13.3​
233.87​
31.5​
233.68​
6.12​
233.72​
63​
233.72​
61.19​
234.04​
3200​
234.04​
-2.7​
234.04​
-6.3​
234.09​
1.28​
234.09​
46.28​
234.14​
12.9​
234.14​
32.3​
233.94​
6.08​
233.99​
65.85​
233.99​
63.97​
234.29​
3240​
234.29​
-4.3​
234.29​
-1.6​
234.33​
1.28​
234.33​
49.03​
234.38​
12.9​
234.38​
32.3​
234.19​
6.06​
234.24​
65.9​
234.24​
65.08​
234.55​
3240​
234.55​
-4.3​
234.55​
234.6​
1.28​
234.6​
48.39​
234.65​
12.9​
234.65​
32.3​
234.44​
6.06​
234.5​
65.89​
234.5​
65.67​
234.79​
3200​
234.79​
-0.4​
234.79​
-3.9​
234.84​
1.02​
234.84​
33.53​
234.89​
10.2​
234.89​
33.8​
234.7​
6.1​
234.75​
64​
234.75​
65.42​
235.05​
3200​
235.05​
-4.7​
235.05​
0.4​
235.1​
1.02​
235.1​
39.03​
235.15​
10.6​
235.15​
34.5​
234.95​
6.15​
235​
57.89​
235​
61.94​
235.3​
3160​
235.3​
-3.5​
235.3​
1.6​
235.35​
1.02​
235.35​
27.36​
235.43​
8.6​
235.43​
38.3​
235.21​
6.2​
235.25​
52.01​
235.25​
57.33​
235.59​
3120​
235.59​
1.6​
235.59​
-2.3​
235.64​
0.77​
235.64​
23.39​
235.69​
7.1​
235.69​
41.3​
235.48​
6.12​
235.54​
45.58​
235.54​
50.84​
235.84​
3120​
235.84​
4.7​
235.84​
1.2​
235.9​
0.77​
235.9​
26.33​
235.95​
7.5​
235.95​
41.3​
235.74​
6.17​
235.79​
41.89​
235.79​
45.93​
 
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   #16  

Jack@European_Parts

Gone But Not Forgotten
Joined
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VCDS Serial number
C?ID=57337
What is the status of the lift pump.......the screen, and FPR with filter for volume tests?

Mechanicals need to be observed and compared to logs to see if a deviation exists to diagnose a PSI sensor or just change it.
 
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   #17  

tofast2belast

Verified VCDS User
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Messages
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VCDS Serial number
C?ID=207897
Ok so this past weekend I replaced cylinder 5 injector(it was wet at the port) which solved the misfire issue,

Also replaced the rail fuel pressure sensor. Got a code saying it was defective. Had bad gas leak so took it apart again yesterday and found that I forgot to tighten one of the rail lines..

So got it all back together. Last night started up fine ran thru readiness in basic settings and it was all ok.

Went for test drive and all was good.. So I thought.

This morning, back to hard start like it did before.. Still no codes..

About 20 min of driving the CEL pops up and says fuel rail pressure too low. I'm like wtf why yesterday it was good then today it's doing same crap as before..

One thing I noticed when doing output tests yesterday was the N276 valve was not clicking on drivers side(U.S. Spec, Bank 1?)
Anyway didn't think much of it til this morning, I ran it again and no click.. So I'm pretty sure it's the Regulator valve is stuck open.. Hence low pressure... So looks like I will be getting a new pump.
 
   #19  

tofast2belast

Verified VCDS User
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VCDS Serial number
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Ok well here's another update. I had ordered both HPFP pumps(got a good deal on both) on Wednesday of this week but they haven't arrived yet. On Wednesday evening, I took off both N276 valves and swapped them around Bank1<->Bank2, to see if it was wiring issue or in fact a dead solenoid.. Swapping them confirmed dead solenoid.

so I was going to disassemble the solenoid even further. well, as I was about to press it out of the nut, I heard it click so I stopped going any further and see if it was going to work again. So I pushed on the valve part and it moved and sprung back. so I plugged it back in the car and started output tests. It was clicking once again. I reinstalled it in the pump, ran output tests once again to confirm all was working..

Cleared the codes... started the engine... It started up normal once again!!! I ran through basic settings to set readiness. The fuel system adapted with message "system ok".. I went for test drive which I was kind of heavily footed and everything seemed normal. Yesterday, the cold start was good, drove normal, and my MPG seems to be normal(for what nonexistent the 4.2 would provide).

Did some logs, requested vs actual fuel pressure confirms all is working once again..
NO more CODES or ISSUESS YAY!!!:)..

Sadly now I have 2 fuel pumps that I don't need..
 
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