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Thread: 5211 - Fuel Rail/System Pressure Too Low

  1. #1
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    5211 - Fuel Rail/System Pressure Too Low

    Hello!
    I tried to search in the forums for a thread but could not find any relevant for my issue
    I also have a couple of questions regarding my troubleshooting

    According to RossTech Wiki P0087 there are several solutions for this faultcode.
    The HPFP was replaced last month, and the fuelfilter was replaced yesterday.
    The old HPFP pump was inspected for metal shavings, nothing to be found.
    I can read from the rosstech wiki that
    "When found in Audi Common Rail V6, V8 and V12 TDI engines, please see TPI 2020693 for Contaminated fuel found in fuel system concerns. After mechanical all repairs are made N276 may need to be adapted and the EDC may need to be flash updated on the Audi Dealer level. When a dealer level update applies SVM code 01A036 is used."
    Im not sure if the new pump was adapted, nor am I sure if this needs to be done.
    I have tried to log IDE00188 -- Fuel high pressure; actual value and IDE00201 -- High fuel pressure; specified value, but as you can see in the faultcode in the full scan, the actual value differences aprox 200bar from the specified value at the time it throws the fault code.

    Is there any way I can use this method belowto check for pressure leak in the fuel system, or is this for gasoline cars only? I tried to follow those steps but the actual fuel pressure value is not moving when the engine is off (and ignition on)

    Is there also any way to log or test the lift pump inside the dieseltank?

    Last question is regarding the VC scope, im not so familiar with that.
    Why wont the green line scale like the red one? I notice that it says "100" top left corner, but I cant change that. I have also tried to type in dozens of different values in the "vertical scale min/max" bottom right corner, but its only the red line that changes. What am I doing wrong?


    Code:
    Wednesday,25,March,2020,20:25:15:21245
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 19.6.2.0 (x64)  HEX-NET CB: 0.4513.4
    Data version: 20190930 DS308.0
    www.Ross-Tech.com
    
    
    VIN: WAUZZZ4L9DD009457   License Plate: JIMETTER
    Mileage: 184060km-114369mi   Repair Order: 
    
    
    Chassis Type: 4L-AU56 (4F0)
    Scan: 01 02 03 05 08 09 10 15 16 17 18 19 20 28 34 42 46 4C 4F 52
              55 56 5F 62 69 6D 6F 72
    
    VIN: WAUZZZ4L9DD009457   Mileage: 184060km-114369miles
    
    01-Engine -- Status: Malfunction 0010
    02-Auto Trans -- Status: OK 0000
    03-ABS Brakes -- Status: OK 0000
    04-Steering Angle -- Status: OK 0000
    05-Acc/Start Auth. -- Status: OK 0000
    08-Auto HVAC -- Status: OK 0000
    09-Cent. Elect. -- Status: OK 0000
    10-Park/Steer Assist -- Status: OK 0000
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    18-Aux. Heat -- Status: OK 0000
    19-CAN Gateway -- Status: OK 0000
    20-High Beam Assist. -- Status: OK 0000
    28-HVAC, Rear -- Status: OK 0000
    34-Level Control -- Status: OK 0000
    42-Door Elect, Driver -- Status: OK 0000
    46-Central Conv. -- Status: OK 0000
    4C-Tire Pressure II -- Status: OK 0000
    4F-Centr. Electr. II -- Status: OK 0000
    52-Door Elect, Pass. -- Status: OK 0000
    55-Headlight Range -- Status: OK 0000
    56-Radio -- Status: Malfunction 0010
    5F-Information Electr. -- Status: OK 0000
    62-Door, Rear Left -- Status: OK 0000
    69-Trailer -- Status: OK 0000
    6D-Trunk Elect. -- Status: OK 0000
    6F-Centr. Conv. II -- Status: OK 0000
    72-Door, Rear Right -- Status: OK 0000
    -------------------------------------------------------------------------------
    Address 01: Engine (J623-CRCA)       Labels:. 059-907-401-V2.clb
       Part No SW: 4L2 910 401 B    HW: 4L0 907 401 C
       Component: 3.0TDI EDC17  H39 0001  
       Revision: 53H39---    Serial number:               
       Coding: 2A2A401A253601020000
       Shop #: WSC 31414 790 00001
       ASAM Dataset: EV_ECM30TDI0114L2910401B 001001
       ROD: EV_ECM30TDI0114L1910401H.rod
       VCID: A306830BAA8785571A-80F6
    
    1 Fault Found:
    5211 - Fuel Rail/System Pressure 
              P0087 00 [167] - Too Low
              MIL ON - Not Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Mileage: 184064 km
                        Date: 2020.03.25
                        Time: 20:18:26
    
                        Engine speed: 2948.00 /min
                        Normed load value: 99.2 %
                        Vehicle speed: 122 km/h
                        Coolant temperature: 71 °C
                        Intake air temperature: 11 °C
                        Ambient air pressure: 1010 mbar
                        Voltage terminal 30: 14.720 V
                        Unlearning counter according OBD: 80
                        Fuel temperature: 10.1 °C
                        Mean injection quantity: 68.85 mg/stroke
                        Rail pressure regulation: status-Bits 0-7: 5
                        Fuel high pressure: actual value: 1.7754e+006 hPa
                        High fuel pressure: specified value: 1.963e+006 hPa
                        Pressure control valve adaptation factor: 1.1549
                        Fuel level: 98.00 l
    
    Readiness: 0 0 0 0 1 
    
    -------------------------------------------------------------------------------
    Address 02: Auto Trans (J217)       Labels:| 0C8-927-750.clb
       Part No SW: 0C8 927 750 AL    HW: 0C8 927 750 AL
       Component: AL1000 AISIN  001 2096  
       Serial number:               
       Coding: 001578
       Shop #: WSC 26176 001 1048576
       ASAM Dataset: EV_TCMAL991031 002112
       ROD: EV_TCMAL991031_002.rod
       VCID: F6A08A5F499540FF0D-80A2
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels:. 4L0-910-517-V2.clb
       Part No SW: 4L0 910 517 M    HW: 4L0 614 517 L
       Component: ESP ALLRAD MK25E1   0020  
       Revision: 00H02001    
       Coding: 2200673
       Shop #: WSC 31414 790 00001
       VCID: B4247057D76912EFF3-80E0
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 05: Acc/Start Auth.        Labels:. 4F0-910-852.clb
       Part No SW: 4F0 910 852 B    HW: 4F0 905 852 H
       Component: FBSAUDIC6 ELV   H08 0200  
       Revision: 00H08000    Serial number: 10603702012499
       Coding: 0000131
       Shop #: WSC 31414 790 00001
       VCID: A5029D136CB37B6774-80F0
    
       Subsystem 1 - Part No: 4F0 910 132 E
       Component: FBSAUDIC6 EZS   H04 0020
    
       Subsystem 2 - Part No: 4F0 910 220 D
       Component: FBSAUDIC6 IDG   H01 0054
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC (J255)       Labels: None
       Part No SW: 4L0 910 043 D    HW: 4L0 820 043 AH
       Component: KLIMA 4 ZONEN H15 0070  
       Revision: 00---026    Serial number: 00000030251205
       Coding: 01029816
       Shop #: WSC 31414 790 00001
       VCID: A5029D13ACB37B6774-80F0
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect.        Labels: 4F0-910-279.lbl
       Part No SW: 4F0 910 279 AH    HW: 4F0 907 279 D
       Component: ILM Fahrer      H31 0400  
       Revision: 00000000    Serial number: 4F0907279     
       Coding: 0023221
       Shop #: WSC 31414 790 00001
       VCID: EFAEBF3BFECF7137CE-80BA
    
       Subsystem 1 - Part No: 4L1 910 113   Labels: 1KX-955-119.CLB
       Component: Wischer AU716   H18 0110  
       Coding: 00064792
       Shop #: WSC 31414  
    
       Subsystem 2 - Part No: 8K0 910 557   Labels: 8K0-955-559.CLB
       Component: REGENLICHTSENSORH04 0003  
       Coding: 00150059
       Shop #: WSC 31414  
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 10: Park/Steer Assist (J446)       Labels:| 4L0-919-475-7X2.clb
       Part No SW: 4L0 919 475 A    HW: 4H0 919 475 C
       Component: PARKHILFE 8K  H07 0011  
       Revision: 11001001    Serial number: 55901218700352
       Coding: 05031F
       Shop #: WSC 31414 790 00001
       ASAM Dataset: EV_EPHVA18AU7160000 001001
       ROD: EV_EPHVA18AU7160000.rod
       VCID: B42470571F6912EFF3-80E0
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 4L0-910-655.lbl
       Part No SW: 4L0 910 655 D    HW: 4L0 959 655 C
       Component: 70 AIRBAG AUDI8RH43 0230  
       Revision: 04H43000    Serial number: 00399D09G40K  
       Coding: 0014128
       Shop #: WSC 31414 790 00001
       VCID: AE10623F3945383F85-80FA
    
       Subsystem 1 - Serial number: 6332QSME001B32462
    
       Subsystem 2 - Serial number: 6342QSME181C1B46K
    
       Subsystem 3 - Serial number: 6352QSME7D1A4B60T
    
       Subsystem 4 - Serial number: 6362QSME001B194EI
    
       Subsystem 5 - Serial number: 63734SME0A17245E1
    
       Subsystem 6 - Serial number: 63834SME4A182C769
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel        Labels: 4F0-910-549.lbl
       Part No SW: 4F0 910 549 B    HW: 4F0 953 549 E
       Component: J0527               0830  
       Revision: 00H08000    Serial number: 90055121490111
       Coding: 0002142
       Shop #: WSC 31414 790 00001
       VCID: A81C94271BA1660F4F-80FC
    
       Subsystem 1 - Part No: XXXXXXXXXXX 
       Component: E0221           H03 0030
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments (J285)       Labels:. 4L0-920-xxx-17.clb
       Part No SW: 4L0 920 933 H    HW: 4L0 920 933 H
       Component: KOMBIINSTR.   H35 0316  
       Revision: 00000000    Serial number: NGA22KR7D     
       Coding: 1356630401010008000004
       Shop #: WSC 31414 790 00001
       VCID: B228764FED7D1CDFE1-80E6
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 18: Aux. Heat        Labels: 4L0-910-105.lbl
       Part No SW: 4L0 910 105     HW: 4L0 265 105 P
       Component: Heizgeraet      H09 0140  
       Revision: 0000000C    Serial number: 00000009021078
       Coding: 0000101
       Shop #: WSC 31414 790 00001
       VCID: E08CCC073311DE4F47-80B4
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway (J533)       Labels:. 4F0-907-468.clb
       Part No SW: 4F0 907 468 S    HW: 4F0 907 468 G
       Component: GW-BEM 5CAN-M H06 0058  
       Revision: MB700037    Serial number: 3700M127130103
       Coding: 00CF07
       Shop #: WSC 31414 790 00001
       VCID: BFCE2F7B2E2FC1B71E-80EA
    
       Subsystem 1 - Part No SW: 8K0 915 181 D    HW: 8K0 915 181 D
       Component: J367-BDM  H07 0125 
       Serial number: 00000000002790776793
    
       Subsystem 2 - Part No SW: 8K0 959 663     HW: 8K0 959 663 
       Component: J532_DCDCStab  H17 0042 
       Serial number: 12195000141011200181
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 20: High Beam Assist. (J844)       Labels:. 8K0-857-511.clb
       Part No SW: 4F0 857 511 K    HW: 4F0 857 511 K
       Component: FLA           H04 0004  
       Revision: AA001002    
       Coding: 02019064747464545425363E
       Shop #: WSC 31414 790 00001
       VCID: B02C7C47E3712ECF97-80E4
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 28: HVAC, Rear        Labels: None
       Part No SW: 4L0 910 158     HW: 4L0 919 158 AA
       Component: KLIMABETAETIGUNGH06 0060  
       Revision: 00---010    Serial number: 00000030251691
       Coding: 0000006
       Shop #: WSC 31414 790 00001
       VCID: E89CD427DB21A60F8F-80BC
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 34: Level Control        Labels: 4L0-910-553.lbl
       Part No SW: 4L0 910 553 L    HW: 4L0 907 553 E
       Component: LUFTFDR.-CDC    H04 7890  
       Revision: --H04001    Serial number: 15.1528-0194.2
       Coding: 0015520
       Shop #: WSC 12515 002 1048576
       VCID: B326734BD26715D7EA-80E6
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver (J386)       Labels:. 4F0-959-793.clb
       Part No SW: 4F0 959 793 T    HW: 8K0 959 793 M
       Component: TSG FA        H12 0362  
       Revision:             Serial number: 0000034509798 
       Coding: 011C02205040440004
       Shop #: WSC 31414 790 00001
       VCID: C8DC34A77BE1860FAF-809C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv.        Labels:. 4L0-910-289.lbl
       Part No SW: 4L0 910 289 K    HW: 4L0 907 289 K
       Component: Komfortgeraet   H12 0130  
       Revision: 0130 ---    Serial number: 01793982550000
       Coding: 3277189
       Shop #: WSC 31414 790 00001
       VCID: B83C4467CB01F68FDF-80EC
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 4C: Tire Pressure II        Labels: 4F0-910-274.clb
       Part No SW: 4F0 910 274 B    HW: 4F0 907 274 
       Component: J793  RKA+      H04 0110  
       Revision: 00000519    Serial number: 00005190187276
       Coding: 0758729
       Shop #: WSC 31414 790 00001
       VCID: A306830B628785571A-80F6
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 4F: Centr. Electr. II        Labels: 4F0-910-280.lbl
       Part No SW: 4F0 910 280     HW: 4F0 907 280 
       Component: ILM Beifahrer   H16 0100  
       Revision:             Serial number: 00000000648413
       Coding: 0011001
       Shop #: WSC 31414 790 00001
       VCID: DEF0F2FF0965E8BF75-808A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass. (J387)       Labels:. 4F0-959-792.clb
       Part No SW: 4F0 959 792 T    HW: 8K0 959 792 M
       Component: TSG BF        H12 0362  
       Revision:             Serial number: 0000034534144 
       Coding: 011C02205040440004
       Shop #: WSC 31414 790 00001
       VCID: C7DE379B76FF8977A6-8092
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 55: Headlight Range (J431)       Labels:| 8X0-907-357.clb
       Part No SW: 8X0 907 357 C    HW: 8X0 907 357 B
       Component: ****LWR12**** H02 0012  
       Serial number: 120718-0002-095
       Coding: 11476F1010020500
       Shop #: WSC 31414 790 00001
       ASAM Dataset: EV_HeadlRegulBasic 005001
       ROD: EV_HeadlRegulBasic.rod
       VCID: C2C8268F55DDAC5F71-8096
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio (R)       Labels: Redir Fail!
       Part No SW: 4G0 035 056 E    HW: 4G0 035 056 
       Component: Radio U STD   H60 0093  
       Revision: AB001007    Serial number: 230G/0C2566939
       Coding: 010003020100000000
       Shop #: WSC 31414 790 00001
       VCID: A306830BA28785571A-80F6
    
    1 Fault Found:
    00821 - Antenna 2 for Radio (R93) 
                007 - Short to Ground
                 Freeze Frame:
                        Fault Status: 01100111
                        Fault Priority: 5
                        Fault Frequency: 1
                        Reset counter: 241
                        Mileage: 184063 km
                        Time Indication: 0
                        Date: 2020.03.25
                        Time: 20:13:33
    
                 Freeze Frame:
                        Voltage: 15.00 V
    
    
    -------------------------------------------------------------------------------
    Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
       Part No SW: 4L2 035 666 E    HW: 4L2 035 666 D
       Component: H-BN-EU       H44 0528  
       Revision: --------    Serial number: 219GZ0C7500961
       Coding: 180100060004B3ED010023556F632003E40000020100000000
       Shop #: WSC 31414 790 00001
       VCID: B12A7943E87B27C798-80E4
    
       Subsystem 1 - Part No: 8R0 060 884 AH
       Component: EUR 2012  1308 
    
       Subsystem 2 - Part No SW: 8R0 919 604     HW: 8R0 919 604 
       Component: DU7 High  H41 0104 
       Serial number: A130GQ0C2503386     
    
       Subsystem 3 - Part No SW: 4L0 919 614 B    HW: 4L0 919 614 B
       Component: E0380 Bedient  H01 0060 
       Serial number: 00000002031740      
    
       Subsystem 4 - Part No: 8R0 060 961 C
       Component: CD-Database  3638 
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 62: Door, Rear Left (J388)       Labels:. 4F0-959-795.clb
       Part No SW: 4F0 959 795 Q    HW: 8K0 959 795 F
       Component: TSG HL        H11 0362  
       Revision:             Serial number: 0000031577288 
       Coding: 010800204040230004
       Shop #: WSC 31414 790 00001
       VCID: C7DE379B76FF8977A6-8092
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 69: Trailer (J345)       Labels: None
       Part No SW: 4L0 907 383 D    HW: 4L0 907 383 D
       Component: Anhaenger     H09 0100  
       Revision: 2C001001    Serial number: 00000179758228
       Coding: 0101010000000000
       Shop #: WSC 31414 790 00001
       VCID: B228764FED7D1CDFE1-80E6
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 6D: Trunk Elect.        Labels: None
       Part No SW: 4L0 910 945     HW: 4L0 827 851 E
       Component: ValeoHeckdeckel H57 0500  
       Revision: --H57001    Serial number: E5030000B     
       Shop #: WSC 98765 666 38354
       VCID: EC94A837CFD98A2FEB-80B8
    
       Subsystem 1 - Part No: 4L0 910 946 
       Component: ValeoHeckdeckel H57 0500
    
       Subsystem 2 - Serial number: 0
    ó
    
       Subsystem 3 - Serial number: RD18.07.12--H57001002G0368˙
    
       Subsystem 4 - Serial number: 2G0368˙
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 6F: Centr. Conv. II        Labels:. 4L0-910-290.lbl
       Part No SW: 4L0 910 290     HW: 4L0 907 290 
       Component: ILM HINTEN 2    H08 0080  
       Revision: AAH08080    Serial number: 128756140-----
       Coding: 0000001
       Shop #: WSC 31414 790 00001
       VCID: E582DD132C33BB67B4-80B0
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 72: Door, Rear Right (J389)       Labels:. 4F0-959-795.clb
       Part No SW: 4F0 959 795 Q    HW: 8K0 959 795 F
       Component: TSG HR        H11 0362  
       Revision:             Serial number: 0000031577289 
       Coding: 010800204040230004
       Shop #: WSC 31414 790 00001
       VCID: C7DE379B76FF8977A6-8092
    
    No fault code found.
    
    End----------(Elapsed Time: 02:09, VBatt start/end: 14.9V/14.8V)-----------

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  3. #2
    Benevolent Dictator Uwe's Avatar
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    You must click on the item in question before you can change its scaling.

    -Uwe-
    Lock-down of sick people: Quarantine
    Lock-down of healthy people: Tyranny

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  5. #3
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    Quote Originally Posted by Uwe View Post
    You must click on the item in question before you can change its scaling.

    -Uwe-
    Thanks! Now I got it right.
    But now a new problem accured;
    Everytime it exceeds a certain value the graph goes to zero in the graph window.
    Why? is it because the values recieves a letter (e+) when exceeding 1000bar?
    Its impossible to log the acceleration when it suddently drops to the floor during thepull


  6. #4
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by Znippie View Post
    Everytime it exceeds a certain value the graph goes to zero in the graph window.
    Why? is it because the values recieves a letter (e+) when exceeding 1000bar?
    That is a distinct possibility. It would not be completely shocked if VC-Scope did not handle a dynamic data format change gracefully.

    In that case, the most expedient solution might be to log the data and graph it in Excel.

    -Uwe-
    Lock-down of sick people: Quarantine
    Lock-down of healthy people: Tyranny

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  8. #5
    Ross-Tech Employee Dana's Avatar
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    Quote Originally Posted by Znippie View Post
    "When found in Audi Common Rail V6, V8 and V12 TDI engines, please see TPI 2020693 for Contaminated fuel found in fuel system concerns. After mechanical all repairs are made N276 may need to be adapted and the EDC may need to be flash updated on the Audi Dealer level. When a dealer level update applies SVM code 01A036 is used."
    Im not sure if the new pump was adapted, nor am I sure if this needs to be done.

    Code:
    Address 01: Engine (J623-CRCA)       Labels:. 059-907-401-V2.clb
       Part No SW: 4L2 910 401 B    HW: 4L0 907 401 C
       Component: 3.0TDI EDC17  H39 0001  
       Revision: 53H39---    Serial number:               
       Coding: 2A2A401A253601020000
       Shop #: WSC 31414 790 00001
       ASAM Dataset: EV_ECM30TDI0114L2910401B 001001
       ROD: EV_ECM30TDI0114L1910401H.rod
       VCID: A306830BAA8785571A-80F6
    I don't believe that TPI applies. No doubt, there appear to have been 2 flash updates over the years for that 4L2 910 401 B EDC and SVM code 01A183 would likely bump it from SWL 0001 to 0004 ... but the 2042993 TPI I located was glow plug specific. I don't think getting a dealer level flash is going to help in this case.


    Quote Originally Posted by Znippie View Post
    Is there any way I can use this method belowto check for pressure leak in the fuel system, or is this for gasoline cars only? I tried to follow those steps but the actual fuel pressure value is not moving when the engine is off (and ignition on)

    Is there also any way to log or test the lift pump inside the dieseltank?
    The procedure in the video is gasoline specific but you can verify that injectors (or high side components) aren't stuck wide open by shutting it off and making sure the fuel pressure doesn't drop off immediately.

    You can run this procedure:

    http://wiki.ross-tech.com/wiki/index...CR_TDI_Engines

    Although it is intended for fuel filter replacement rather than pump testing that will operate the in-tank (and any in-line) pumps.

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  10. #6
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    Quote Originally Posted by Dana View Post
    The procedure in the video is gasoline specific but you can verify that injectors (or high side components) aren't stuck wide open by shutting it off and making sure the fuel pressure doesn't drop off immediately.

    You can run this procedure:

    http://wiki.ross-tech.com/wiki/index...CR_TDI_Engines

    Although it is intended for fuel filter replacement rather than pump testing that will operate the in-tank (and any in-line) pumps.
    Thanks for the reply. As mentioned the actual fuel pressure value is not moving when the engine is off and ignition on, its standing on defualt 2500hpa.
    I did some test runs last night, and the ecu is asking for 2000bar but it only measures 1800 on actual pressure.
    The car was previously tuned (chip tune) but later overwritten to stock, but Im starting to think that there is a problem with that chiptuning.
    I have read somewhere that the 204hp V6 HPFH delivers 2000bar and the 245 V6 HPFP delivers 1800 bar, so there might be something worth checking out

  11. #7
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    Newest flash update (0004) did not help, and that kills my theori about a bad chip file.
    Next up is to find out if the pressure regulator valve is somehow leaking or is faulty.
    Pressure valve was changed 2 years ago

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  13. #8
    NostraJackAss Jack@European_Parts's Avatar
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    Have you measured actual fuel PSI/Volume?

    JPPSG

    https://forums.ross-tech.com/showthr...l=1#post125791

    Mechanical issues must be qualified with actual test equipment to qualify block data as reported or basic isolated tests.

    Have you tried an isolation plug at each injector path on rail & to see if rail PSI is achieved during cranking in blocks or mechanical gauge?


    Did you know a fuel rail injection isolation cap can be made with an old line from junk yard cheap or purchased from any quality injection rebuild outfit for Bosch?


    This should be in any serious EU diesel shop tool box!

    Example:

    https://www.store.joma-tools.com/en/...s-leakage.html


    Last edited by Jack@European_Parts; 03-29-2020 at 09:37 AM.
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