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Author Topic: LPFP Signal Issues P3089  (Read 1629 times)

Offline MrFernze

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LPFP Signal Issues P3089
« on: May 08, 2023, 08:31:20 pm »
Hello,

I've had some issues with my LPFP (even though its brand new(TTRS variant)), I have changed the spark plugs, built up fuel pressure, checked fuel pressure in the HPFP, reverted G6 LPFP back to stock OEM, changed LPFP controller. Don't know what else to do, and I cant read the wiring diagrams to save my life. If anyone could help with telling which terminal to test that would be wonderful, as from the wiring diagrams I don't understand where to test the signal from the LPFP to the ECU. Code is below for VCDS. TIA :)

Edit: I have checked literally every VW forum I could find regarding the fix but not many have helped in my circumstance. I will update this accordingly and hopefully if anyone has the same issue, I'll document it similar to my previous posts.

Code: [Select]
Monday,08,May,2023,13:45:30:02823
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 11 x64
VCDS Version: 23.3.1.0 (x64)  HEX-V2 CB: 0.4631.4
Data version: 20230421 DS346.2
www.Ross-Tech.com


VIN: WVWZZZ1KZ6W022316   License Plate:
Mileage: 224950km-139777mi   Repair Order:



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


Chassis Type: 1K (1K0)
Scan: 01 02 03 08 09 15 16 17 19 25 42 44 46 52 56 62 72

VIN: WVWZZZ1KZ6W022316   Mileage: 224950km-139777miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: Malfunction 0010
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: Malfunction 0010
16-Steering wheel -- Status: Malfunction 0010
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: Malfunction 0010
46-Central Conv. -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
62-Door, Rear Left -- Status: Cannot be reached 1100
72-Door, Rear Right -- Status: Cannot be reached 1100
-------------------------------------------------------------------------------
Address 01: Engine        Labels:. 06F-907-115-AXX.clb
   Part No SW: 1K0 907 115 A    HW: 1K0 907 115 A
   Component: 2.0l R4/4V TFSI  00 0070 
   Revision: --H01---    Serial number: VWZ7Z0E2321880
   Coding: 040300031C070060
   Shop #: WSC 01279 785 00200
   VCID: 2411E0CC72DB4F5A4B3-8070
   VINID: 9E69EAAAA05BA869C00820C11898CAA7C1

4 Faults Found:
012691 - Intake Manifold Runner Control
               P3193 - 002 - Open Stop outside of Valid Range
             Freeze Frame:
                    Fault Status: 01100010
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 224957 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 01:14:56

             Freeze Frame:
                    RPM: 0 /min
                    Load: 0.0 %
                    Speed: 0.0 km/h
                    Temperature: 34.0°C
                    Temperature: 20.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 11.938 V

008214 - Intake Manifold Flap Position Sensor (Bank 1)
               P2016 - 002 - Short to Ground
             Freeze Frame:
                    Fault Status: 01100010
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 224957 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 01:14:56

             Freeze Frame:
                    RPM: 0 /min
                    Load: 0.0 %
                    Speed: 0.0 km/h
                    Temperature: 34.0°C
                    Temperature: 20.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 11.938 V

012425 - Signal Line for Fuel Pump Electronics
               P3089 - 004 - Electrical Malfunction
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 224957 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 01:24:03

             Freeze Frame:
                    RPM: 504 /min
                    Load: 47.4 %
                    Speed: 0.0 km/h
                    Temperature: 32.0°C
                    Temperature: 20.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 11.049 V

012556 - Low Pressure Fuel Regulation
               P310C - 004 - Fuel Pressure Drops Intermittently
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 224957 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 01:24:17

             Freeze Frame:
                    RPM: 1186 /min
                    Load: 41.2 %
                    Speed: 0.0 km/h
                    Temperature: 32.0°C
                    Temperature: 17.0°C
                    Absolute Pres.: 1000.0 mbar
                    Voltage: 14.351 V

Readiness: 0110 0100

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 02E-927-770.clb
   Part No SW: 02E 300 043 C    HW: 02E 927 770 AE
   Component: GSG DSG         070 1111 
   Revision: 04507000    Serial number: 00000601111214
   Coding: 0000020
   Shop #: WSC 01279 785 00200
   VCID: 1471B00CA27B3FDABB3-8040

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 1K0-907-379-MK60-F.clb
   Part No SW: 1K0 907 379 Q    HW: 1K0 907 379 Q
   Component: ESP FRONT MK60      0102 
   Revision: 00T12001   
   Coding: 0004738
   Shop #: WSC 01279 785 00200
   VCID: 40D94C5C8683737A4FB-8014

5 Faults Found:
00778 - Steering Angle Sensor (G85)
            000 - -
01435 - Brake Pressure Sensor 1 (G201)
            005 - No or Incorrect Basic Setting / Adaptation
01423 - Lateral Acceleration Sensor (G200)
            005 - No or Incorrect Basic Setting / Adaptation
00778 - Steering Angle Sensor (G85)
            005 - No or Incorrect Basic Setting / Adaptation
01309 - Power Steering Control Module (J500)
            008 - Implausible Signal

-------------------------------------------------------------------------------
Address 08: Auto HVAC
Cannot be reached

-------------------------------------------------------------------------------
Address 09: Cent. Elect.        Labels:. 3C0-937-049-23-H.lbl
   Part No SW: 3C0 937 049 E    HW: 3C0 937 049 E
   Component: Bordnetz-SG     H37 1002 
   Revision: 00H37000    Serial number: 00000001950675
   Coding: E58D0F2700041800001400001400000000087F075C
   Shop #: WSC 01279 785 00200
   VCID: 2B030BF01F0580228A9-807E

   Subsystem 1 - Part No: 1K2 955 119 C  Labels: 1KX-955-119.CLB
   Component: Wischer VW350  012  0402 
   Coding: 00065493
   Shop #: WSC 01279 

   Subsystem 2 - Part No: 1K0 955 559 R  Labels: 1K0-955-559-AF.CLB
   Component: RegenLichtSens 010  1010 
   Coding: 00207646
   Shop #: WSC 01279 

7 Faults Found:
00988 - Lamp for Brake Light; Right (M10)
            012 - Electrical Fault in Circuit
             Freeze Frame:
                    Fault Status: 01101100
                    Fault Priority: 1
                    Fault Frequency: 1
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0

             Freeze Frame:
                        ON
                    Voltage: 11.75 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF

00984 - Left Tail Light (M4)
            012 - Electrical Fault in Circuit
             Freeze Frame:
                    Fault Status: 01101100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0

             Freeze Frame:
                        ON
                    Voltage: 11.80 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF

00985 - Right Tail Light (M2)
            012 - Electrical Fault in Circuit
             Freeze Frame:
                    Fault Status: 01101100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0

             Freeze Frame:
                        ON
                    Voltage: 11.80 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF

01495 - Bulb for High-Beams; Left (M30)
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0

             Freeze Frame:
                        ON
                    Voltage: 11.75 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF

01499 - Bulb for High-Beams; Right (M32)
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0

             Freeze Frame:
                        ON
                    Voltage: 11.75 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF

01333 - Door Control Module; Rear Left (J388)
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 2
                    Fault Frequency: 49
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0

             Freeze Frame:
                        ON
                    Voltage: 11.85 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF

01334 - Door Control Module; Rear Right (J389)
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 2
                    Fault Frequency: 49
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0

             Freeze Frame:
                        ON
                    Voltage: 11.85 V
                        ON
                        ON
                        OFF
                        OFF
                        OFF


-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 1K0-909-605.lbl
   Part No SW: 1K0 909 605 N    HW: 1K0 909 605 N
   Component: 2F AIRBAG VW8   015 2100 
   Revision: 03015000    Serial number: 0038ED0G7CH4 
   Coding: 0012870
   Shop #: WSC 01279 785 00200
   VCID: 372B2780D34D34C2FE1-8062

   Subsystem 1 - Serial number: 6332MSME0F3C7A41N

   Subsystem 2 - Serial number: 6342MSME12106670

   Subsystem 3 - Serial number: 6351HSME075C47709

   Subsystem 4 - Serial number: 6361HSME075E4C0FP

1 Fault Found:
00588 - Airbag Igniter; Driver Side (N95)
            001 - Upper Limit Exceeded - MIL ON

-------------------------------------------------------------------------------
Address 16: Steering wheel        Labels: 1K0-953-549-MY8.lbl
   Part No SW: 1K0 953 549 AG    HW: 1K0 953 549 AG
   Component: J0527           634 0070 
   Coding: 0012112
   Shop #: WSC 01279 785 00200
   VCID: 77ABE78093CDF4C23E1-8022

1 Fault Found:
01426 - Controls in Steering Wheel (E221)
            004 - No Signal/Communication

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 1K0-920-xxx-17.lbl
   Part No: 1K6 920 962
   Component: KOMBIINSTRUMENT VDD 1012 
   Coding: 0003403
   Shop #: WSC 00011 067 57207
   VCID: 6E85C2E4EC97B50AED7-803A

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway        Labels:. 1K0-907-530-V1.clb
   Part No SW: 1K0 907 530 F    HW: 1K0 907 951
   Component: Gateway         H10 0120 
   Revision:   H10       Serial number: 28001056200B15
   Coding: 3F3F0340070003
   Shop #: WSC 01279 785 00200
   VCID: 2A0D0EF410FF992A71F-807E

3 Faults Found:
01305 - Databus for Infotainment
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 1
                    Fault Frequency: 38
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 01:11:43

01333 - Door Control Module; Rear Left (J388)
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 01:11:44

01334 - Door Control Module; Rear Right (J389)
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 2
                    Fault Frequency: 2
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 01:11:44


-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
   Part No: 1K6 920 962
   Component: IMMO            VDD 1012 
   Shop #: WSC 00000 000 00000
   VCID: 6E85C2E4EC97B50AED7-803A

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver        Labels:. 1K0-959-701-MIN3.clb
   Part No SW: 1K0 959 701 M    HW: 1K0 959 701 M
   Component: Tuer-SG         005 0972 
   Coding: 0000692
   Shop #: WSC 01279 785 00200
   VCID: 382924BCDE533BBAF7B-806C

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
   Part No: 1K0 909 144 H
   Component: EPS_ZFLS Kl. 234    2901 
   Revision: 00H17000   
   Shop #: WSC 02069 000 90108
   VCID: 2F3B1FE02B1DFC02A61-807A

2 Faults Found:
03803 - Steering Angle Sensor for Steering Aid
            000 - - - MIL ON
             Freeze Frame:
                    Fault Status: 11100000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 224957 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 01:11:42

             Freeze Frame:
                    Battery Volts: 11.9 V
                        DD
                    Temperature: 18.0°C
                    Count: 2
                    Steering Angle: 0.00°
                    Count: 1
                        SteerAng n.Init

00778 - Steering Angle Sensor (G85)
            008 - Implausible Signal - MIL ON
             Freeze Frame:
                    Fault Status: 11101000
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 01:11:42

             Freeze Frame:
                    Battery Volts: 11.9 V
                        DD
                    Temperature: 18.0°C
                    Count: 2
                    Steering Angle: 0.00°
                    Count: 1
                        SteerAng n.Init


-------------------------------------------------------------------------------
Address 46: Central Conv.        Labels:. 1K0-959-433-MIN.clb
   Part No: 1K0 959 433 AK
   Component:    KSG              0401 
   Coding: 01C802087F2D8405485FC69010CC
   Shop #: WSC 00000 785 00200
   VCID: 79AFE1B8A5D9E2B2485-802C

   Subsystem 1 - Component:   Sounder No Answer     

   Subsystem 2 - Component:       NGS No Answer     

   Subsystem 3 - Component:      IRUE No Answer     

5 Faults Found:
01333 - Door Control Module; Rear Left (J388)
            004 - No Signal/Communication
01334 - Door Control Module; Rear Right (J389)
            004 - No Signal/Communication
01135 - Interior Monitoring Sensors
            004 - No Signal/Communication
00323 - Vehicle Inclination Sensor (G384)
            004 - No Signal/Communication
01134 - Alarm Horn (H12)
            004 - No Signal/Communication

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass.        Labels:. 1K0-959-702-MIN3.clb
   Part No SW: 1K0 959 702 M    HW: 1K0 959 702 M
   Component: Tuer-SG         005 0972 
   Coding: 0000692
   Shop #: WSC 01279 785 00200
   VCID: 392F21B8E55922B2085-806C

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (J503)       Labels:. 5M0-035-1xx-56.clb
   Part No SW: 5M0 035 186 J    HW: 5M0 035 186 J
   Component: Radio RCD310  042 0082 
   Revision: 01000001    Serial number: VWZ1Z2M4102409
   Coding: 01000400020001
   Shop #: WSC 31414 790 31414
   VCID: 33331390CB35D8E2C29-8066

1 Fault Found:
00821 - Antenna 2 for Radio (R93)
            011 - Open Circuit
             Freeze Frame:
                    Fault Status: 01101011
                    Fault Priority: 5
                    Fault Frequency: 1
                    Reset counter: 39
                    Mileage: 224957 km
                    Time Indication: 0
                    Date: 2000.00.00
                    Time: 01:12:01


-------------------------------------------------------------------------------
Address 62: Door, Rear Left
Cannot be reached

-------------------------------------------------------------------------------
Address 72: Door, Rear Right
Cannot be reached

End----(Elapsed Time: 01:03, VBatt start/end: 11.8V/11.8V. VIgn 11.8V)-----


« Last Edit: May 08, 2023, 08:33:28 pm by MrFernze »

Offline pudding

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Re: LPFP Signal Issues P3089
« Reply #1 on: May 12, 2023, 07:13:16 pm »
This one could be tricky as not even the Ross Tech wiki has P3089 in it.

Not wanting to teach you to suck eggs, but if we go back to basics..... the engine ECU commands a certain pressure (between 3-6 bar) from the LPFP, depending on load/rpm. It determines that from the low pressure fuel sensor, which is bolted into side of the HPFP. 

The sensor on top of the HPFP (the one that always snaps) is the 'thrust sensor' and that manages the high pressure side for the DI injectors, based on feedback from the high pressure fuel sensor, which is the one in the fuel rail.

The ECU communicates with the LPFP controller over CAN, and the HPFP is controlled directly from the engine ECU via High side sensor and thrust sensor.

On top of all that, the LPFP also has a relay and a PWM module.  It's all a complete minefield to diagnose.

Most, if not all of the engine sensors share a common 5V reference line.  I can see your intake runner flap has a short to ground, so it could be related. A lot of the time with things like this, you fix one thing and it fixes everything else. A lot of the fault codes can be red herrings chasing you down the wrong path.

Diagnosing CAN signals can be fun, not. A scanner with a scope function is normally required, but I can't remember if VCDS has that or not.

There are still some clues there the CAN gateway could be unhappy, or there's a bad wire/connection somewhere in the CAN network as there are some other modules that are unhappy too, like the ABS/Steering, lights, HVAC, door controllers etc.

I hate to say it, but I think it's going to need a lot of end to end continuity testing with a meter  :confused:  I'm not sure forum assistance will be much help. I think this needs an auto electrician to systematically go through it all as they have access to equipment we don't.

Good luck with it. You certainly deserve a break as it's been, what, 8 months or so now?
 




2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline MrFernze

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Re: LPFP Signal Issues P3089
« Reply #2 on: May 12, 2023, 08:30:04 pm »
Hey Pudding  :happy2:

Yeah it's been around 8 months or so, add the 2 years sitting prior to that.

I'll have a look at the HPFP side of things as you mentioned, and test for continuity. Unfortunately VW did not make the wiring insulation very strong and its probably a torn cable or something similar. Hopefully I'll get to it before summer ends :)

The intake runner flap is the delete, common engine code to happen which I'm not really fussed about. I'm just hoping its not a wire that's completely torn in a stupid place, but with my luck it probably is.  :grin:

As always, thanks for the information pudding! 

Offline MrFernze

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Re: LPFP Signal Issues P3089
« Reply #3 on: May 28, 2023, 07:41:49 pm »
Hey Pudding!

Good news! I looked at the wiring diagram and made notes regarding the fuel pump. Checking everything throughout the network and making sure that I would be besting the wire. Made some small cuts onto the wire that communicates from the module to the ECU for continuity. It all checked out. However, I then checked the ECU pins which was just a random thought and found that the pin was bent from installing the ecu. Don't know how it happened but it did https://imgur.com/a/gIYr3R9 Bent it back into place and carefully installed the ECU and started the car.  :pomppomp: It did not cut out thankfully!  :pomppomp:

Thanks for all the help as usual Pudding. Would love to buy you a drink for all the help you give to everyone on this forum!
I'll speak to you shortly, I'll probably break something else lmao.
« Last Edit: May 28, 2023, 08:24:41 pm by MrFernze »