Hi all, I'm seeking your wisdom on an issue I've been having. Apologies if this should be in the VCDS forum instead - I wasn't sure.
While driving on the M25 my car went into what I suspect is limp mode but I'm not sure. A scan (on a basic hand-held device) revealed the following two codes:
P0087 - Fuel Rail/System Pressure Too Low
P229A - Fuel Pressure Regulator 2 Exceeded Control Limits - Pressure Too Low
I get the flashing glow plug light, but the issue feels more like a loss in power rather than the engine manually restricting itself. I can get up to 70 (eventually) on flat ground. Introduce an upwards incline to the mix though and I'm lucky to maintain 50. Initially this fault would clear whenever I reset the ignition switch and then reintroduce itself when the engine went under heavy load or I revved too high. Previous searching has led me to believe this could be the turbo vanes, so before trying to get into the hot side of the turbo I tried some cleaner spray that goes into the intake (which I appreciate can't be doing much from the cold side of the turbo).
After doing this and driving the car, the faults changed. Resetting the ignition no longer stops the coil light from flashing, the DPF light is now illuminated (though I suspect this is more to do with me not being able to rev the nuts off of it and clear it out) and I have the yellow check engine light displayed.
I changed the fuel filter today and found a *lot* of sediment in housing. I do wonder if these could me metal filings from the high pressure fuel pump but I'm not sure at this point. At any rate, I cleaned it all out, primed the filter with VCDS, cleared all codes (lights immediately return upon clearing) and took it for another drive. When I got back I carried out a VCDS scan and got the following:
Wednesday,18,May,2022,16:17:24:39914
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 22.3.1.4 (x64) HEX-V2 CB: 0.4615.4
Data version: 20220407 DS337.0
www.Ross-Tech.com
VIN: [hidden] License Plate:
Mileage: 185560km-115301mi Repair Order:
Chassis Type: 1Z-SK35 (7N0)
Scan: 01 03 08 09 10 15 16 17 19 25 2E 37 42 44 46 52 56 62 72
VIN: TMBCT21Z8C2065314 Mileage: 185560km-115301miles
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
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
2E-Media Player 3 -- Status: OK 0000
37-Navigation -- Status: Malfunction 0010
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
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine (J623-CAYC) Labels:. 03L-906-023-CAY.clb
Part No SW: 03L 906 023 LP HW: 03L 906 023 JH
Component: R4 1.6l TDI H43 9978
Revision: --H43--- Serial number: CVN: DDE5EFC5
Coding: 00114014030500080000
Shop #: WSC 44144 002 1048576
ASAM Dataset: EV_ECM16TDI02103L906023LP 003012
ROD: EV_ECM16TDI02103L906023LP_003.rod
VCID: 7F5B0D83C774C253B65-802A
VINID: 91D49390206A2130801850C110625B6F89
2 Faults Found:
16856 - Particle Filter
P2463 00 [173] - Excessive Soot Accumulation
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 185554 km
Date: 2022.05.18
Time: 15:48:59
Engine RPM: 0.00 /min
Normed load value: 0.0 %
Vehicle speed: 0 km/h
Coolant temperature: 59 °C
Intake air temperature: 38 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 12.198 V
Unlearning counter according OBD: 40
Particle filter: soot mass measured-MASS_SOOT_PHY_PF: 40.01 g
Particle filter: soot mass calculated-MASS_SOOT_SIM_PF: 23.54 g
Particle filter kilometers since last regeneration_1-DIST_RGN_ENVD_H: 770 km
Counter for regeneration time of particulate filter-T_INT_RGN_ACT_INI_PF_ENVD_H: 4626.8415 s
Particle filter: difference pressure-DIP_PF: 3.90 hPa
DPF: offset for differential pressure-DIP_PF_AD[0]: -13.27 hPa
Service regeneration: Release conditions 3-FRF_STATE_RGN: 9
10116 - Fuel Rail/System Pressure
P0087 00 [101] - Too Low
Not Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 1
Mileage: 185554 km
Date: 2022.05.18
Time: 15:58:27
Engine RPM: 2260.25 /min
Normed load value: 38.8 %
Vehicle speed: 37 km/h
Coolant temperature: 61 °C
Intake air temperature: 37 °C
Ambient air pressure: 1000 mbar
Voltage terminal 30: 14.118 V
Unlearning counter according OBD: 40
Fuel high-pressure: actual value-FUP_FIL: 96.301 MPa
Fuel pressure regulator valve: specified value rail pressure-LV_PCV_CTL: 00000000
Fuel level-FTL_CAN: 28 l
Fuel temperature-TFU: 39 °C
Fuel Metering Valve-VCV: 29.204 %
Fuel Pressure Regulator Valve-PCV: 34.242 %
Fuel high pressure commanded value_1-FUP_SP_KPA_ENVD: 111505.127 kPa
Readiness: 1 1 0 0 1
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels:. 1K0-907-379-MK70M.clb
Part No SW: 1K0 907 379 AK HW: 1K0 907 379 AK
Component: MK70 M MASR 0106
Revision: 00H35001
Coding: 0017665
Shop #: WSC 73430 790 00064
VCID: 7BA3F993DFECDE739AD-802E
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301) Labels:| 3C8-907-336.clb
Part No SW: 3T0 820 047 AB HW: 3T0 820 047 AB
Component: AC Manuell H19 0502
Revision: 00001010
Coding: 0000000002
Shop #: WSC 73430 790 00064
ASAM Dataset: EV_ACManueBHBVW36X A01010
ROD: EV_ACManueBHBVW36X_VW46.rod
VCID: 6FBBDDC39714B2D3265-803A
No fault code found.
-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:. 1K0-937-08x-09.clb
Part No SW: 1K0 937 084 F HW: 1K0 937 084 F
Component: BCM PQ35 B 110 0651
Revision: 00110 AC
Coding: 48000AB8A05BB1C04008008011000024430000AE524D81605CC440000040
Shop #: WSC 73430 790 00064
VCID: 313F1BBB4120E423701-8064
Subsystem 1 - Part No: 1Z2 955 119 D Labels: 1KX-955-119.CLB
Component: Wischer 09091 26 0601
Coding: 00D7B7
Subsystem 2 - Part No: 1Z0 951 171
Component: Innenraumuebe 008 5101
1 Fault Found:
01134 - Alarm Horn (H12)
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 4
Fault Frequency: 1
Reset counter: 70
Mileage: 185554 km
Time Indication: 0
Date: 2016.10.08
Time: 15:48:55
Freeze Frame:
Term 15 On
Voltage: 12.15 V
ON
ON
Term 50 Off
OFF
OFF
-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446) Labels:| 5J0-919-475.clb
Part No SW: 5J0 919 475 A HW: 5J0 919 475 A
Component: PARKHILFE 4K H11 0005
Revision: --H11--- Serial number: 75461125800542
Coding: 10800E
Shop #: WSC 13765 790 00064
ASAM Dataset: EV_EPHVA14SKxxx0000 001001
ROD: EV_EPHVA14SKxxx0000_001.rod
VCID: 333311B3BBBCD63302D-8066
No fault code found.
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 1K0-909-605.lbl
Part No SW: 1K0 909 605 T HW: 1K0 909 605 T
Component: Q4 AIRBAG VW8 020 2300
Revision: 05020000 Serial number: 0038PD2SZ3L9
Coding: 0020788
Shop #: WSC 73430 790 00064
VCID: 3D27378B81781043E49-8068
Subsystem 1 - Serial number: 6332MSME623612753
Subsystem 2 - Serial number: 6342MSME636604221
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel (J527) Labels:| 5K0-953-569.clb
Part No SW: 5K0 953 521 BM HW: 5K0 953 569 D
Component: LENKS.MODUL 014 0140
Revision: FF010040 Serial number: 20110903301808
Coding: 108A040000
Shop #: WSC 73430 790 00064
ASAM Dataset: EV_SMLSNGVOLWSXS A01004
ROD: EV_SMLSNGVOLWS.rod
VCID: 78A9E69FE25AF56BF7F-802C
Multifunction steering wheel control module:
Subsystem 1 - Part No SW: 3T0 959 537 HW: 3T0 959 537 Labels: 3C8-959-537.CLB
Component: E221__MFL-URO H07 0012
Coding: 820000
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels:| 5K0-920-xxx-17.clb-SRI1
Part No SW: 1Z0 920 943 S HW: 1Z0 920 943 S
Component: KOMBI H05 0607
Serial number: 00000000000000
Coding: 410A00
Shop #: WSC 73430 031 00064
ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04114
ROD: EV_Kombi_UDS_VDD_RM09_004_SK35.rod
VCID: 49CF535BC930BCE3581-801C
No fault code found.
-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533) Labels:. 7N0-907-530-V2.clb
Part No SW: 7N0 907 530 H HW: 1K0 907 951
Component: J533 Gateway H42 1620
Revision: H42 Serial number: 140911F2001757
Coding: 351303
Shop #: WSC 73430 790 00064
VCID: 35372FABB548C8032C9-8060
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 0607
Serial number: 00000000000000
Coding: 000000
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03009
ROD: EV_Immo_UDS_VDD_RM09_VW21.rod
VCID: 6A8DCCD7ACF657FB71B-803E
No fault code found.
-------------------------------------------------------------------------------
Address 2E: Media Player 3 (J650) Labels:. 5N0-035-342.lbl
Part No SW: 5N0 035 342 E HW: 5N0 035 342 E
Component: SG EXT.PLAYER H13 0240
Revision: A1001003 Serial number: 7660764359
Coding: 020000
Shop #: WSC 73430 790 00064
VCID: 290FF3DB69F09CE3B81-807C
No fault code found.
-------------------------------------------------------------------------------
Address 37: Navigation (J794) Labels:| 1K0-035-27x-37.clb
Part No SW: 3T0 035 192 C HW: 3T0 035 192 C
Component: RNS315-EU H34 0263
Serial number: SKZAZ2L9219125
Coding: 040004110401000000000002
Shop #: WSC 73430 031 00064
ASAM Dataset: EV_RNS315EUV2UDS A01004
ROD: EV_RNS315EUV2UDS.rod
VCID: 2E0500C7509EFBDB6D3-807A
Data carrier:
Subsystem 1 - Part No: 3AA 919 866
Component: EUR_W_0031 0031
1 Fault Found:
1048642 - Internal Control Module Memory Check Sum Error
B2000 42 [009] - General Memory Failure
[ECU defect data memory failure]
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 4
Fault Frequency: 1
Mileage: 160654 km
Date: 2020.06.21
Time: 14:57:44
-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels:. 1K0-959-701-MIN3.clb
Part No SW: 1T0 959 701 T HW: 1T0 959 701 T
Component: Tuer-SG 009 2120
Coding: 0000756
Shop #: WSC 73430 790 00064
VCID: 48C9565FDEBA45EB47F-801C
No fault code found.
-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1K0-909-14x-GEN3.clb
Part No: 1K0 909 144 M
Component: EPS_ZFLS Kl. 69 3201
Revision: 00H20000
Shop #: WSC 73430 790 00064
VCID: 343112AFB232D10B1B7-8060
No fault code found.
-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels:. 1K0-959-702-MIN3.clb
Part No SW: 1T0 959 702 R HW: 1T0 959 702 R
Component: Tuer-SG 009 2120
Coding: 0000756
Shop #: WSC 73430 790 00064
VCID: 47CB5563D3A44A934E5-8012
No fault code found.
-------------------------------------------------------------------------------
Address 62: Door, Rear Left Labels:. 1K0-959-703-GEN3.clb
Part No SW: 5K0 959 703 A HW: 5K0 959 703 A
Component: Tuer-SG 007 2101
Coding: 0000144
Shop #: WSC 73430 790 1012544
VCID: 323D14B74826DF3B09B-8066
No fault code found.
-------------------------------------------------------------------------------
Address 72: Door, Rear Right Labels:. 1K0-959-704-GEN3.clb
Part No SW: 5K0 959 704 A HW: 5K0 959 704 A
Component: Tuer-SG 007 2101
Coding: 0000144
Shop #: WSC 73430 790 1012544
VCID: 333311B3B73CD63302D-8066
No fault code found.
End----------(Elapsed Time: 01:09, VBatt start/end: 12.5V/12.5V)-----------
I'm very new to VCDS and trying to understand how to properly decipher the scan reports. I do notice that under "fuel pressure regulator valve", "specified rail value" is reading zero - is that a clue as to the problem? Finally it's worth mentioning I had an injector replaced just around Christmas and have been waiting for another one to go, but I assumed that would throw it's own separate error.
If you've made it through my wall of text, please accept my thanks and I'm grateful for any advice you can offer. Cheers!
- Nathan