P0193 Code - Help!

I have a 2011 VW Golf wagon TDI with code P0193 (210,000km). I've taken the car to a vw shop and they cannot figure out what is causing this. The car drives very poorly, it started about two months ago driving on the hwy went into limp mode. After restarting it was fine. The issue slowly got worse and worse to the point now it will not drive normally. The odd time it will start not in limp mode and if I try to drive it it'll either stall or be very jerky then switch to limp mode.

The shop has replaced fuel filter, a torn pump seal, fuel metering valve, checked all voltages/wiring to ECU without any cause for concern. No broken wires have been found, or bad grounds. They are at a loss to what is causing this.

No metal shavings anywhere in the fuel system.

I'm ready to push it off a cliff, any ideas?

I have an update. I bought vcds so I can work on fuel system and run the pump. I replaced the fuel pressure sensor with new oem sensor from the dealer...no more issues!!! Instant acceleration now and no more limp mode. Hope this helps someone.

Interestingly enough, the fuel pressure sensor came up in the very first google result I could find.

https://www.obd-codes.com/p0193

What shop was this?

Sadly the issue has returned after a day of no issues! It drove great after installing the fuel pressure sensor now it will not get out of limp mode, same P0193 code, high fuel rail pressure. I ran VCDS and will post results below. I also checked the fuel pressure while running in limp mode and it indicated 350 bar at idle, 800 bar when pressing gas in park. That doesn't seem right. What do you guys think high pressure fuel pump or ECU issue or wiring. The shop I took it to, Westside Auto checked all wiring and couldn't find anything wrong with wiring to the ecu.

Wednesday,07,August,2019,20:35:26:04508
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 8 x64(Parallels)
VCDS Version 19.6.1.0 (x64) HEX-V2 CB: 0.4508.4
Data version: 20190529 DS308.0
www.Ross-Tech.com


VIN: 3VWPL8AJ4BM649339 License Plate:
Mileage: 218090km-135514mi Repair Order:



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


Chassis Type: AJ-VW36 (7N0)
Scan: 01 02 03 08 09 15 16 17 19 1C 25 2E 42 44 46 4F 52 56 62 72
77

VIN: 3VWPL8AJ4BM649339 Mileage: 218090km-135514miles

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
1C-Position Sensing -- Status: OK 0000
25-Immobilizer -- Status: Malfunction 0010
2E-Media Player 3 -- Status: OK 0000
42-Door Elect, Driver -- Status: Malfunction 0010
44-Steering Assist -- Status: Malfunction 0010
46-Central Conv. -- Status: OK 0000
4F-Centr. Electr. II -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: Malfunction 0010
56-Radio -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
77-Telephone -- Status: Sporadic communication error 1000
-------------------------------------------------------------------------------
Address 01: Engine (CJA) Labels: 03L-906-022-CBE.clb
Part No SW: 03L 997 030 B HW: 03L 906 019 DA
Component: R4 2.0l TDI G000AG 9983
Revision: 12H13--- Serial number:
Coding: 0050078
Shop #: WSC 55306 001 1048576
VCID: 2D0709F0511027AF51F-8079

1 Fault Found:
000403 - Fuel Pressure Sensor (G247)
P0193 - 000 - Short to Plus - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 218098 km
Time Indication: 0
Date: 2013.12.28
Time: 20:28:58

Freeze Frame:
RPM: 828 /min
Speed: 0.0 km/h
Voltage: 13.45 V
Inj. Quantity: 8.8 mg/str
Temperature: 40.5∞C
Temperature: 58.5∞C
Temperature: 39.6∞C

Readiness: 0 0 0 1 1

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 02E-927-770.clb
Part No SW: 02E 300 052 G HW: 02E 927 770 AL
Component: GSG DSG AG6 511 9136
Revision: 05151112 Serial number: 00001009081821
Coding: 0000020
Shop #: WSC 00066 000 00000
VCID: 1869C824CE92B207129-804D

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels:. 1K0-907-379-60EC1F.clb
Part No SW: 1K0 907 379 BE HW: 1K0 907 379 BE
Component: ESP MK60EC1 H31 0108
Revision: 00H31001
Coding: 114B600C49260003880E06E792220042310000
Shop #: WSC 00066 000 00000
VCID: 76B5E69CE8C62477E05-8023

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301) Labels:| 3C8-907-336.clb
Part No SW: 3C8 907 336 AC HW: 3C8 907 336 AC
Component: Climatic H14 0305
Revision: 00009001
Coding: 0000000002
Shop #: WSC 00066 000 00147
ASAM Dataset: EV_Climatic A01005
ROD: EV_ClimaBasis_VW36.rod
VCID: 6E85CEFC90161CB7285-803B

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels:. 1K0-937-08x-09.clb
Part No SW: 5K0 937 086 H HW: 5K0 937 086 H
Component: BCM PQ35 M 011 1035
Revision: BJ011001
Coding: 2D380E1F902F3EC4008800816000054401000086535D8560648020000040
Shop #: WSC 55306 001 1048576
VCID: 392F2DA099588B0FCD7-806D

Subsystem 1 - Part No: 1K1 955 119 F Labels: 1KX-955-119.CLB
Component: Wischer 17111 21 0512
Coding: 009795

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234) Labels:| 5K0-959-655.clb
Part No SW: 5K0 959 655 B HW: 5K0 959 655 B
Component: AirbagVW10G 021 0706
Serial number: 003C4R01428I
Coding: 00003047
Shop #: WSC 00066 000 00000
ASAM Dataset: EV_AirbaVW10SMEVW360 A01012
ROD: EV_AirbaVW10SMEVW360.rod
VCID: 392F2DA099D88B0FCD7-806D

Crash sensor for side airbag: driver side:
Subsystem 1 - Part No SW: 1KM 955 557 HW: 1KM 955 557
Component: S.Sens.Fahr.V H01 ----
Serial number: 3572MSME37504558ZZZU

Crash sensor for side airbag: front passenger side:
Subsystem 2 - Part No SW: 1KM 955 557 HW: 1KM 955 557
Component: S.Sens.Beif.V H01 ----
Serial number: 3582MSME32094658ZZZV

Crash sensor for side airbag: rear: driver side:
Component: S.Sens.Fahr.H --- ----
Serial number: 3511HSME05523C24ZZZE

Crash sensor for side airbag: rear: passenger side:
Component: S.Sens.Beif.H --- ----
Serial number: 3521HSME1B1E3C24ZZZU

Crash sensor for front airbag: driver side:
Component: F.Sens.Fahr --- ----
Serial number: 35527SME61014B23ZZZ4

Crash sensor for front airbag: front passenger side:
Component: F.Sens.Beif --- ----
Serial number: 35627SME7A264B23ZZZM

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527) Labels:| 5K0-953-569.clb
Part No SW: 5K0 953 507 AH HW: 5K0 953 549 B
Component: Lenks.Modul 007 0080
Revision: -------- Serial number: 90440JJB00015
Coding: 188A140000
Shop #: WSC 00066 000 00158
ASAM Dataset: EV_SMLSNGKUDS A05001
ROD: EV_SMLSNGKUDS_A05.rod
VCID: 76B5E69CE8462477E05-8023

Multifunction steering wheel control module:
Subsystem 1 - Part No SW: 5K0 959 542 A HW: 5K0 959 542 A Labels: 3C8-959-537.CLB
Component: E221__MFL-TAS H07 0013
Serial number: 0080912
Coding: 820000

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels:| 5K0-920-xxx-17.clb-SRI1
Part No SW: 5K0 920 871 A HW: 5K0 920 871 A
Component: KOMBI H23 0204
Revision: X0023007 Serial number:
Coding: 370F00
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_KombiUDSMM9RM10 A04203
ROD: EV_KombiUDSMM9RM10_A04_VW36.rod
VCID: 2C0104F4668A2EA7461-8079

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels:. 7N0-907-530-V1.clb
Part No SW: 7N0 907 530 A HW: 1K0 907 951
Component: J533 Gateway H25 5603
Revision: H25 Serial number: 12111001201192
Coding: ED807F0600161300002002
Shop #: WSC 00066 000 00000
VCID: 2E050EFC5C165CB7685-807B

1 Fault Found:
01303 - Telephone Transceiver (R36)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00110100
Fault Priority: 2
Fault Frequency: 12
Reset counter: 57
Mileage: 217963 km
Time Indication: 0
Date: 2013.12.17
Time: 17:13:45


-------------------------------------------------------------------------------
Address 1C: Position Sensing Labels: 1Kx-919-xxx-1C.lbl
Part No SW: 5N0 919 879 HW: 5N0 919 879
Component: Kompass 001 0001
Revision: 00001000 Serial number: 1225223RAG1W06
Coding: 0000002
Shop #: WSC 00066 000 00000
VCID: 7EA5FEBCCCF66C37B85-802B

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334) Labels:| 5K0-920-xxx-25.clb
Part No SW: 5K0 953 234 HW: 5K0 920 871 A
Component: IMMO H23 0204
Revision: X0023007 Serial number:
Coding: 000000
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_ImmoUDSMM9RM10 A01200
ROD: EV_ImmoUDSMM9RM10_VW12.rod
VCID: 6A8DC2ECACFEF09774D-803F

1 Fault Found:
10485760 - Internal Control Module Memory Check Sum Error
B2000 00 [008] - -
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 1
Fault Frequency: 254
Mileage: 146390 km
Date: 2017.11.11
Time: 18:48:42


-------------------------------------------------------------------------------
Address 2E: Media Player 3 (J650) Labels:. 5N0-035-342.lbl
Part No SW: 5N0 035 342 C HW: 5N0 035 342 C
Component: SG EXT.PLAYER H13 0111
Revision: A1001003 Serial number: 7668338880
Coding: 010000
Shop #: WSC 00066 000 00000
VCID: 270BFBD87FEC0DFFAB3-8073

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386) Labels:| 3C0-959-70X-GEN4.clb
Part No SW: 3C0 959 701 B HW: 3C0 959 793
Component: TUER-SG FT 002 0307
Revision: 13101005 Serial number: 0001501406
Coding: 0004B5
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_DCU42BroseDriveSide A03004
ROD: EV_DCU42BroseDriveSide_VW36.rod
VCID: 270BFBD87F6C0DFFAB3-8073

Slave Driver:
Subsystem 1 - Part No SW: 1K0 959 703 AH HW: 1K0 959 795 T Labels: 1K0-959-70X-GEN4.CLB
Component: J388__TSG-HL 006 1401
Serial number: 00000005193646
Coding: 000490

1 Fault Found:
66048 - Motor for Front Window Regulator
B11EC 54 [008] - Missing Calibration / Basic Setting
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 7
Fault Frequency: 1
Reset counter: 50


-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1K0-909-14x-GEN3.clb
Part No: 1K0 909 144 J
Component: EPS_ZFLS Kl. 70 3001
Revision: 00H17000
Shop #: WSC 02069 000 90108
VCID: 313F15804D28434F757-8065

1 Fault Found:
00750 - Warning Lamp
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 2
Fault Frequency: 6
Reset counter: 40
Time Indication: 0

Freeze Frame:
Voltage: 10.50 V
DD
Temperature: 21.0∞C
RPM: 31 /min
Speed: 0.0 km/h
Speed: 0.0 km/h
Count: 0


-------------------------------------------------------------------------------
Address 4F: Centr. Electr. II (J520) Labels:. 1K0-907-532.clb
Part No SW: 7N0 907 532 HW: 1K0 907 951
Component: EZE_2 H25 5603
Revision: H25 Serial number: 12111001201192
Coding: 050B0500
Shop #: WSC 00066 000 00000
VCID: 6FBBD3F8979C15BF233-803B

Subsystem 1 - Part No SW: 8R0 959 591 A HW: 8R0 959 591
Component: J245EE20SKB13 H02 0220
Serial number: 0123456789ABCDEFGHIJ

Subsystem 2 - Part No SW: 8R0 959 591 A HW: 8R0 959 591
Component: J394EE20SKB13 H02 0220
Serial number: 0123456789ABCDEFGHIJ

1 Fault Found:
02071 - Local Databus
012 - Electrical Fault in Circuit - Intermittent
Freeze Frame:
Fault Status: 00101100
Fault Priority: 1
Fault Frequency: 65
Reset counter: 60
Mileage: 169204 km
Time Indication: 0
Date: 2012.09.22
Time: 15:04:17


-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387) Labels:| 3C0-959-70X-GEN4.clb
Part No SW: 3C0 959 702 B HW: 3C0 959 792
Component: TUER-SG BT 002 0307
Revision: 15101005 Serial number: 0001466878
Coding: 0004B4
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_DCU52BrosePasseSide A03004
ROD: EV_DCU52BrosePasseSide_VW32.rod
VCID: 2809F8E472720287A29-807D

Slave Passenger:
Subsystem 1 - Part No SW: 1K0 959 704 AH HW: 1K0 959 794 T Labels: 1K0-959-70X-GEN4.CLB
Component: J389__TSG-HR 006 1401
Serial number: 00000005192433
Coding: 000490

2 Faults Found:
66048 - Motor for Front Window Regulator
B11EC 54 [008] - Missing Calibration / Basic Setting
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 7
Fault Frequency: 1
Reset counter: 54

67589 - Turn Signal in Exterior Mirror
B11FD 01 [008] - Electrical Failure
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 15
Reset counter: 50
Mileage: 217826 km
Date: 2019.07.01
Time: 12:19:11


-------------------------------------------------------------------------------
Address 56: Radio (J503) Labels:. 5M0-035-1xx-56.clb
Part No SW: 1K0 035 180 AC HW: 1K0 035 180 AC
Component: Radio Prem-8 H13 0043
Revision: -----26S Serial number: VWZ4Z7K3126846
Coding: 2100040004
Shop #: WSC 00066 000 00000
VCID: 619FA5C05148B3CFA57-8035

2 Faults Found:
02635 - Tuner Not Enabled/Activated
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 7
Fault Frequency: 6
Reset counter: 18
Mileage: 190189 km
Time Indication: 0
Date: 2013.04.07
Time: 10:31:02

01303 - Telephone Transceiver (R36)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 6
Fault Frequency: 12
Reset counter: 57
Mileage: 217963 km
Time Indication: 0
Date: 2013.12.17
Time: 17:13:39


-------------------------------------------------------------------------------
Address 77: Telephone (J412) Labels:| 7P6-035-730.clb
Part No SW: 7P6 035 730 C HW: 7P6 035 730 C
Component: TELEFON H05 0440
Revision: 1B001001 Serial number: 00007668517367
Coding: 0A00000000010100
Shop #: WSC 01383 790 50316
ASAM Dataset: UHVNA A01007
ROD: UHVNA.rod
VCID: 323D1A8C44AE78570CD-8067

No fault code found.

End----------(Elapsed Time: 01:24, VBatt start/end: 13.8V/13.7V)-----------

Major bummer. I've not encountered this issue, so I'm of little help diagnosing. What I would suggest is to stay as far away from Rob and Westside as possible. I am friends with a tech who used to work there, and another friend who used to go there for service. The horror stories I've heard are unmentionable. If you're on the west end and want to try another shop, I've had nothing but solid service from Autobahn Performance. Tell Maciek (magic) I say hi. Other indy shops I'd recommend are Eurasia and River City Motors.

Thanks for help and advice on shops, i'm on south side but I like word of mouth shops and would rather drive the distance for it.

I may try and replace the high pressure fuel pump as it's pretty much the only thing left to replace on the fuel system other the injectors. IDParts has decently priced rebuilt ones.

No sweat.

If you're going to opt to change the fuel pump, keep an eye on kijiji, FB marketplace or truck forums for a CP3. You should be able to get one for $100-200 off a bro-dozer that's getting/been upgraded.

Update, I took the car to dealership to get diagnosed. They said the lift pump was the issue causing my P0193 code, as they found the fuel level a little low in the fuel filter housing. So I replaced the lift pump with no improvement.

After doing this, I decided to check the voltage of the fuel pressure sensor. I've checked it multiple times, including 2 days ago and always got 5v readings. But today it was only reading .6v. So I hooked up a temp ground and the voltage spiked to 5v! I've now installed a new ground wire for the sensor and no more limp mode or P1093 code! This took 4 visits to two different vw shops and $2k in parts to solve, in the end only should've cost me $1 for the new ground wire.

The ground must've been floating which was causing the car to always be in limp mode. I hope this helps someone else.

dzubot said:

Update,

The ground must've been floating which was causing the car to always be in limp mode. I hope this helps someone else.

Click to expand...

Very impressive. I was once told by an old timer that 90% of electrical issues can be traced to the ROOT cause of a bad conection or ground.

Case and point !

Hi,

Sorry for bringing up an old post.

I have the exact same issue with mine.

I tested the wires and the results are below

Wires -
1 (left wire, green/brown colour) - 0.01v
2 (middle wire, yellow/red colour) - 5.68v
3 (right wire, red/blue colour) - 5.02v

Does this indicate a fault with the wiring.

Many thanks

KyleG47 said:

Hi,

Sorry for bringing up an old post.

I have the exact same issue with mine.

Click to expand...

Certainly wouldn't hurt to run a good redundant ground. Redundant grounds will never hurt anything, unless its a sloppy job and corrosion can be introduced.

How "exact same issue"? Same code and conditions as o.p. ?

JELLOWSUBMARINE said:

Certainly wouldn't hurt to run a good redundant ground. Redundant grounds will never hurt anything, unless its a sloppy job and corrosion can be introduced.

How "exact same issue"? Same code and conditions as o.p. ?

Click to expand...

Hi,

Thank you for taking the time to reply.

I changed my fuel pressure sensor and it brought up the P0193 - Short to plus code (no issues before this).

How does one run a redundant ground?

Thanks in advance

KyleG47 said:

Hi,

Thank you for taking the time to reply.

I changed my fuel pressure sensor and it brought up the P0193 - Short to plus code (no issues before this).

How does one run a redundant ground?

Thanks in advance

Click to expand...

Its basically adding a new, strong ground to (as close as possible) the item being grounded. Newer cars are so much more sensitive to exact voltages. A corroded ground or other discrepancy can throw things on the ground side.

BTW when you change the sensor you may want to use dielectric (spelling?) grease on electrical fittings. Yet ANOTHER way to have possibile voltage loss (corrosion)

JELLOWSUBMARINE said:

Its basically adding a new, strong ground to (as close as possible) the item being grounded. Newer cars are so much more sensitive to exact voltages. A corroded ground or other discrepancy can throw things on the ground side.

BTW when you change the sensor you may want to use dielectric (spelling?) grease on electrical fittings. Yet ANOTHER way to have possibile voltage loss (corrosion)

Click to expand...

Hey,

Thank you for explaining this.

To change/add a new ground, is it as simple as buying some copper wire, and connecting it from the sensor to a ground point on the vehicle?

Thanks in advance

I have been battling this same issue. Recently purchased a 2014 Passat TDI 2.0 with around 51k miles. After driving it for close to 500 miles the light came on and I start researching and troubleshooting.

I started off simple with a new fuel filter realizing it was likely not going to fix anything but wanted to check for metal or debris. Filter was dirty but no metal found.

Then I replaced the fuel rail pressure sensor. I pulled the fuel rail out since I couldn’t get any tools on the sensor while it was in the car. Also, further reassured me since I found no metal in the rail when I cleaned it up. The intermittent issue persisted with the code popping when it so chooses.

I then added the new ground to the sensor but still spliced it into the harness, issue persisted. Thinking I may have created a ground loop, isolated the new ground just to the sensor. Still getting the blinking glow plug and P0193 code. I have half assed checked the harness and plan to look deeper once time allows. I was able to record the Fuel Rail Pressure Sensor trace along with the Commanded Fuel Rail Pressure. When the code comes on, the sensor reading is 200,000kpa steady while the commanded pressure is around 115,000kpa when accelerating (limited due to limp mode). Screenshot attached. If I drive for a while (less than a mile) the sensor starts showging good values again and an engine restart clears the code. If I restart while the value is 200,000kpa, then the code get locked and CEL gets illuminated.

Most of the time the code comes on when the engine is cool and code is active before engine starts. So a cold start in the morning, if I press the start button without cranking it is already active. It has come on a few times while driving. Seen in the second orange peak in the trace.

So, what does the sensor reading max (200,000kpa) likely indicate? A short in the harness crossing over or still a bad ground? Or complete lack of signal getting to the computer?

I unplugged the sensor this morning, ignition on, engine not running, and the trace did not change.