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Thread: 2012 golf lower fuel pressure

  1. #1
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    UK
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    2012 golf lower fuel pressure

    any help is much appreciated. we have replaced fuel filter, in-tank fuel pump and fuel rail pressure sensor. have removed solenoid on high pressure pump for swarf and small metal fillings but not visible. any help will be much appreciated to daiag if the high pressure pump is at fault. symptoms described by customer is coil light flashing and limp mode and occasionally struggles to start. replaced fuel filter first as not been replaced yet by dealer. after replaced the filter housing would not prime so tested the in tank pump wasnt working replaced the in-tank pump and the vehicle starts better but still goes to limp mode.

    Code:
    Friday,01,September,2017,08:57:37:11898
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 17.8.0.1 (x64)
    Data version: 20170721 DS276.2
    www.Ross-Tech.com
    
    Dealer/Shop Name: Sterling Garage Ltd
    
    VIN: WVWZZZ1KZDW005536   License Plate: OV62GGE
    Mileage: 91620km-56930mi   Repair Order: 
    
    
    Chassis Type: 1K-VW36 (7N0)
    Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56 61
    
    VIN: WVWZZZ1KZDW005536   Mileage: 91620km-56930miles
    
    01-Engine -- Status: Malfunction 0010
    03-ABS Brakes -- Status: OK 0000
    04-Steering Angle -- Status: OK 0000
    08-Auto HVAC -- Status: OK 0000
    09-Cent. Elect. -- Status: Malfunction 0010
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: Malfunction 0010
    19-CAN Gateway -- Status: OK 0000
    25-Immobilizer -- Status: OK 0000
    42-Door Elect, Driver -- Status: OK 0000
    44-Steering Assist -- Status: OK 0000
    46-Central Conv. -- Status: OK 0000
    52-Door Elect, Pass. -- Status: OK 0000
    56-Radio -- Status: OK 0000
    61-Battery Regul. -- Status: Malfunction 0010
     
    -------------------------------------------------------------------------------
    Address 01: Engine (J623-CAYC)       Labels:. 03L-906-023-CAY.clb
       Part No SW: 03L 906 023 MN    HW: 03L 907 425 C
       Component: R4 1.6l TDI   H43 9979  
       Revision: --H43---    Serial number: 00000000000000
       Coding: 08114014030501080000
       Shop #: WSC 01357 011 00200
       ASAM Dataset: EV_ECM16TDI02103L906023MN 003014
       ROD: EV_ECM16TDI02103L997557B.rod
       VCID: 7EF9CC85E1D90FB6F8-802A
    
    3 Faults Found:
    10116 - Fuel Rail/System Pressure 
              P0087 00 [096] - Too Low
              Intermittent - Not Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Mileage: 91619 km
                        Date: 2017.08.31
                        Time: 14:20:36
    
                        Engine speed: 1664.00 /min
                        Normed load value: 72.5 %
                        Vehicle speed: 49 km/h
                        Coolant temperature: 88 C
                        Intake air temperature: 38 C
                        Ambient air pressure: 1000 mbar
                        Voltage terminal 30: 13.440 V
                        Unlearning counter according OBD: 40
                        Fuel high pressure: actual value-FUP_FIL: 6.628 MPa
                        Fuel pressure regulator valve: specified value rail pressure-LV_PCV_CTL: 00000000 
                        Fuel level-FTL_CAN: 31 l
                        Fuel temperature-TFU: 54 C
                        Fuel Metering Valve-VCV: 33.757 %
                        Fuel Pressure Regulator Valve-PCV: 38.693 %
                        Fuel high pressure commanded value_1-FUP_SP_KPA_ENVD: 123999.023 kPa
    
    7478 - Fuel Metering Valve 1 Control Difference 
              P228C 00 [096] - Pressure too Low
              Intermittent - Not Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Mileage: 91619 km
                        Date: 2017.08.31
                        Time: 14:20:36
    
                        Engine speed: 1664.00 /min
                        Normed load value: 72.5 %
                        Vehicle speed: 49 km/h
                        Coolant temperature: 88 C
                        Intake air temperature: 38 C
                        Ambient air pressure: 1000 mbar
                        Voltage terminal 30: 13.440 V
                        Unlearning counter according OBD: 40
                        Fuel high pressure: actual value-FUP_FIL: 6.628 MPa
                        Fuel pressure regulator valve: specified value rail pressure-LV_PCV_CTL: 00000000 
                        Fuel level-FTL_CAN: 31 l
                        Fuel temperature-TFU: 54 C
                        Fuel Metering Valve-VCV: 33.757 %
                        Fuel Pressure Regulator Valve-PCV: 38.693 %
                        Fuel high pressure commanded value_1-FUP_SP_KPA_ENVD: 123999.023 kPa
    
    10119 - High Pressure Fuel Rail 
              P00C6 00 [101] - Minimum Pressure Not Reached
              Not Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 9
                        Mileage: 91619 km
                        Date: 2017.08.31
                        Time: 18:09:06
    
                        Engine speed: 354.75 /min
                        Normed load value: 8.6 %
                        Vehicle speed: 0 km/h
                        Coolant temperature: 59 C
                        Intake air temperature: 29 C
                        Ambient air pressure: 1000 mbar
                        Voltage terminal 30: 11.407 V
                        Unlearning counter according OBD: 40
                        Fuel high pressure: actual value-FUP_FIL: 10.400 MPa
                        Fuel pressure regulator valve: specified value rail pressure-LV_PCV_CTL: 00000001 
                        Fuel level-FTL_CAN: 32 l
                        Time since engine start: 0 s
                        Fuel Metering Valve-VCV: 24.763 %
                        Fuel Pressure Regulator Valve-PCV: 42.184 %
                        Fuel high pressure commanded value_1-FUP_SP_KPA_ENVD: 25610.352 kPa
    
    Readiness: 0 0 0 0 0 
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes (J104)       Labels:. 1K0-907-379-60EC1F.clb
       Part No SW: 1K0 907 379 BL    HW: 1K0 907 379 BL
       Component: ESP MK60EC1   H31 0152  
       Revision: 00H31001    
       Coding: 133B200D092200FFC81004E7901F0091310000
       Shop #: WSC 01357 011 00200
       VCID: 7DFBCB89E4DF14AEE1-8028
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC (J301)       Labels:| 3C8-907-336.clb
       Part No SW: 7N0 907 426 BG    HW: 7N0 907 426 BG
       Component: AC Manuell    H20 0505  
       Revision: 00001018    
       Coding: 0010004003
       Shop #: WSC 01357 011 00200
       ASAM Dataset: EV_ACManueBHBVW36X A01010
       ROD: EV_ACManueBHBVW36X_VW36.rod
       VCID: 7AF1C095FDF12396C4-802E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect. (J519)       Labels:. 1K0-937-08x-09.clb
       Part No SW: 1K0 937 085 P    HW: 1K0 937 085 P
       Component: BCM PQ35  B+  111 0709  
       Revision: AB111709    
       Coding: 48180A3A8025F190408800C0100400644B010288424D8160648087200041
       Shop #: WSC 01357 011 00200
       VCID: 3C7D068DBF45DDA696-8068
    
       Subsystem 1 - Part No: 5K2 955 119 
       Component: Wischer 14051  26  0512 
       Coding: 009795
    
       Subsystem 2 - Part No: 1K8 951 171 
       Component: DWA-Sensor 00  001 0104 
    
       Subsystem 3 - Part No: 1K0 951 605 C
       Component: LIN BACKUP HO  H05 1501 
    
    2 Faults Found:
    01598 - Drive Battery Voltage 
                011 - Open Circuit - Intermittent
                 Freeze Frame:
                        Fault Status: 00101011
                        Fault Priority: 6
                        Fault Frequency: 48
                        Reset counter: 186
                        Mileage: 88457 km
                        Time Indication: 0
                        Date: 2017.07.01
                        Time: 08:22:29
    
                 Freeze Frame:
                            Term 15 On
                        Voltage: 13.05 V
                            ON
                            ON
                            Term 50 On
                            OFF
                            OFF
    
    00446 - Function Limitation due to Under-Voltage 
                002 - Lower Limit Exceeded - Intermittent
                 Freeze Frame:
                        Fault Status: 00100010
                        Fault Priority: 6
                        Fault Frequency: 1
                        Reset counter: 186
                        Mileage: 91493 km
                        Time Indication: 0
                        Date: 2017.08.22
                        Time: 23:05:55
    
                 Freeze Frame:
                            Term 15 Off
                        Voltage: 6.75 V
                            OFF
                            ON
                            Term 50 Off
                            OFF
                            OFF
    
    
    -------------------------------------------------------------------------------
    Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
       Part No SW: 5C0 959 655 B    HW: 5C0 959 655 B
       Component: AirbagVW10    013 0613  
       Serial number: 003G5RAKJN2$  
       Coding: 00004432
       Shop #: WSC 01357 011 00200
       ASAM Dataset: EV_AirbaVW10SMEVW360 A01014
       ROD: EV_AirbaVW10SMEVW360.rod
       VCID: 316327B9600720CE35-8064
    
       Crash sensor for side airbag: driver side: 
       Subsystem 1 - Part No SW: 5K0 959 354     HW: 5K0 959 354 
       Component: S.Sens.Fahr.V  H02 ---- 
       Serial number: 3572MSME30294268ZZZR
    
       Crash sensor for side airbag: front passenger side: 
       Subsystem 2 - Part No SW: 5K0 959 354     HW: 5K0 959 354 
       Component: S.Sens.Beif.V  H02 ---- 
       Serial number: 3582MSME4E617268ZZZ%
    
       Crash sensor for side airbag: rear: driver side: 
       Component: S.Sens.Fahr.H  --- ---- 
       Serial number: 3512QSME683D161AZZZ$
    
       Crash sensor for side airbag: rear: passenger side: 
       Component: S.Sens.Beif.H  --- ---- 
       Serial number: 3522QSME4606160FZZZU
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel (J527)       Labels:| 5K0-953-569.clb
       Part No SW: 5K0 953 507 AS    HW: 5K0 953 549 C
       Component: Lenks.Modul   008 0080  
       Revision: --------    Serial number:  90422LEH0016K
       Coding: 5080040000
       Shop #: WSC 01357 011 00200
       ASAM Dataset: EV_SMLSNGKUDS A05001
       ROD: EV_SMLSNGKUDS_A05.rod
       VCID: 0103B7799027704E85-8054
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb
       Part No SW: 5K0 920 973 A    HW: 5K0 920 973 A
       Component: KOMBI         H05 0705  
       Serial number: 00000000000000
       Coding: 470B00
       Shop #: WSC 01357 011 00200
       ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04716
       ROD: EV_Kombi_UDS_VDD_RM09_A04_VW32.rod
       VCID: 2F6721C17633363E23-807A
    
    1 Fault Found:
    9453074 - Fuel Level Sensor 1 
              B103E 1B [008] - Resistance Too High
              Intermittent - Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 194
    
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway (J533)       Labels:. 7N0-907-530-V2.clb
       Part No SW: 7N0 907 530 S    HW: 7N0 907 530 J
       Component: J533  Gateway H43 1632  
       Revision:   H43       Serial number: 140512F2003633
       Coding: 350003
       Shop #: WSC 01357 011 00200
       VCID: 4085727DD3ADB946CA-8014
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
       Part No SW: 5K0 953 234     HW: 5K0 953 234 
       Component: IMMO          H05 0705  
       Serial number: 00000000000000
       Coding: 000000
       Shop #: WSC 01357 011 00200
       ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03709
       ROD: EV_Immo_UDS_VDD_RM09_VW21.rod
       VCID: 6AD1F0D58D51931634-803E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver        Labels:. 1K0-959-701-MIN3.clb
       Part No SW: 5K0 959 701 B    HW: 5K0 959 701 B
       Component: Tuer-SG         009 2120  
       Coding: 0131636
       Shop #: WSC 01357 011 00200
       VCID: 316327B9A80720CE35-8064
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
       Part No: 1K0 909 144 P
       Component: EPS_ZFLS Kl. 69     3305  
       Revision: 00H22000    
       Shop #: WSC 01357 011 00200
       VCID: 377719A14663FEFE7B-8062
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass.        Labels:. 1K0-959-702-MIN3.clb
       Part No SW: 5K0 959 702 H    HW: 5K0 959 702 H
       Component: Tuer-SG         009 2106  
       Coding: 0131636
       Shop #: WSC 01357 011 00200
       VCID: 38751A9D4B7DF18672-806C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio (J503)       Labels:. 5M0-035-1xx-56.clb
       Part No SW: 1K0 035 186 AN    HW: 1K0 035 186 AN
       Component: Radio RCD310  042 0082  
       Revision: 00000001    Serial number: VWZ1Z2M4354625
       Coding: 05000400040005
       Shop #: WSC 01357 011 00200
       VCID: 72E1E8B5AD815BD68C-8026
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 61: Battery Regul. (J840)       Labels:. 1K0-907-534.clb
       Part No SW: 7N0 907 534     HW: 7N0 907 530 J
       Component: Batt.regelung H43 1632  
       Serial number: 140512F2003633
       Coding: 030F1859
       Shop #: WSC 01357 011 00200
       VCID: 71E3E7B9A88760CE75-8024
    
       Subsystem 1 - Part No SW: 1K0 915 181 H    HW: 1K0 915 181 A
       Component: J367-BDM  H07 0180 
       Serial number: 00000000008900213002
    
    1 Fault Found:
    01598 - Drive Battery Voltage 
                003 - Mechanical Failure - Intermittent
                 Freeze Frame:
                        Fault Status: 00100011
                        Fault Priority: 1
                        Fault Frequency: 53
                        Reset counter: 186
                        Mileage: 88457 km
                        Time Indication: 0
                        Date: 2017.07.01
                        Time: 08:22:30
    
    
    End-------------------------(Elapsed Time: 02:04)--------------------------
    Last edited by Uwe; 09-01-2017 at 08:50 AM. Reason: CODE tags

  2. #2
    Verified VCDS User
    Join Date
    Jul 2014
    Location
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    Posts
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    so if I'm reading correctly here a few parts have been hung but no actual testing ?

    Time to RTFB & test & prove or pass the job on to someone that can, you owe the customer this at least.

  3. #3
    Verified VCDS User
    Join Date
    Nov 2016
    Location
    UK
    Posts
    6
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    Were there any signs of metal filings in the tank when you replaced the pump? Have you verified low pressure supply I know on these you need to remove the low pressure hose that goes to the HPFP, place hose in a bowl with measurements on the side, ensure battery in good condition and run fuel pump for 30secs.
    Minimum is 600ml over a 30 second period, anything less will result in problems.
    If this checks out ok, I normally go to the fuel rail pressure regulation valve N276 as its easy to get to. Remove the return line from the rail and start engine again measure in a bowl, at idle over 30 seconds 75ml is allowed, if this is over the amount the valve is defective. If you're in spec raise engine speed to 2000rpm and again measure you should have nothing coming out the return apart from a drop or two.
    The leak off pipes also include a pressure retention valve which is critical to the piezo control it should hold 1bar of pressure on these. I rarely see these fail.
    Have you done live data check of desired high pressure and actual pressure when the fault occurs?
    My thoughts on this as I had something similar are that, if you have good low supply and no obvious signs of HPFP failure and you're not leaking excessive fuel back into the return which of course would lower fuel pressure then I would be going down the injector route. Any rough engine idle or smoke would confirm this. This is obviously only my opinion.

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