GTD 170 limp mode

[hackman]

Hi,

My golf has recently started going into limp mode. I can cruise along at 65/70mph for a while and when i need to overtake by planting the throttle the limp mode kicks in. If i restart the car it goes away. It can be on a flat road surface or an incline (like a slip road)


Ive done a vcds scan and here are the results:

Address 01: Engine (J623-CFGB) Labels:. 03L-906-018-CFF.clb
Part No SW: 03L 906 018 BC HW: 03L 907 309 R
Component: R4 2,0L EDC H23 7819
Revision: 42H23--- Serial number: 00000000000000
Coding: 001D0012040500080000
Shop #: WSC 01357 011 00200
ASAM Dataset: EV_ECM20TDI01103L906018BC 003005
ROD: EV_ECM20TDI01103L906018BB_003_VW36.rod
VCID: 6CD772B2878BF124D4-8038

1 Fault Found:
5211 - 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: 3
Mileage: 146606 km
Date: 2018.07.02
Time: 14:31:25

Engine speed: 2578.00 /min
Normed load value: 99.6 %
Vehicle speed: 108 km/h
Coolant temperature: 89 °C
Intake air temperature: 40 °C
Ambient air pressure: 1010 mbar
Voltage terminal 30: 13.880 V
Unlearning counter according OBD: 80
Fuel temperature: 57.3 °C
Mean injection quantity: 65.51 mg/stroke
Rail pressure regulation: status-Bits 0-7: 5
Fuel high pressure: actual value: 1.133e+006 hPa
High fuel pressure: specified value: 1.3832e+006 hPa
Pressure control valve adaptation factor: 0.9655
Fuel level: 28.00 l

Readiness: 0 0 0 0 0

Could the pressure sensor be faulty as another time i scanned it said short to ground G247, or is it more like the lift pump is clogged and or fuel filter?

Anyone had this issue before and if so what was the solution?


Cheers

Steve

[Crasher]

I would go for a new lift pump first.

[hackman]

cheers crasher - I will take out lift pump and clean it. Then ill change fuel filter. Failing that a lift pump it will be. and finally a new sensor

[Keithuk]

VAG Error Code: 16471/15059/10116/5211/5212/5227/5231/2838/000135

EOBD II Error Code: P0087

Fault Location:
Fuel Rail/System Pressure - Too Low/Implausible Signal

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Power Loss.

Fuel pressure too low.
Fuel supply pipe blockage.
Fuel pressure sensor harness open circuit or shorted.
Fuel pressure sensor harness electrical circuit poor connection.
Blocked fuel filter.
Visual Inspection of Hardware (Camshaft, Cam Follower, etc).
Mechanical Deficiency of Hardware (worn or missing parts)
.

Possible Solutions:
Check/Replace all faulty Wiring/Connector(s).
Check Measuring Value Blocks (MVB) for Fuel Pressure.
Fuel trim activity 0.90 - 1.15.
Output value rail pressure controller > 2 MPa.
Difference between target and actual pressure > -16.38 bar.


Fuel Rail Pressure Test with VCDS by Ross-Tech - YouTube (https://www.youtube.com/watch?v=k50Z5JLfuJs)

Check for bent/squeezed Fuel Lines.
Check Low Fuel Pressure System for Leaks.
Check Fuel Filter & Filter in Fuel Pump.
Check the Fuel Quantity supplied by the Fuel Pump (G6).
Visual Inspection of Hardware (Camshaft, Cam Follower, etc).

Special Notes:
Petrol/Gasoline:
When found in
2.0l
TFSI: (http://wiki.ross-tech.com/wiki/index.php/2.0l_TFSI_(AXX/BGB/BPJ/BPY/BWA))
Check
Fuel Pressure. (http://wiki.ross-tech.com/wiki/index.php/2.0l_TFSI_(AXX/BGB/BPJ/BPY/BWA)#Checking_Fuel_Pressure)
Check Technical Service Bulletin (TSB) 2027458/01-11-19 (North American Region (NAR)), for an improved Fuel Pressure Sensor (G410).
Check Technical Service Bulletin (TSB) 2015153/15-11-03 (North American Region (NAR)), for a worn Intake Cam Shaft (superseded Technical Service Bulletin (TSB) 15-10-02, 15-11-01 and 15-11-02).
Check Technical Product Information (TPI) 2014143 (Rest of World (RoW)), for a worn Intake Camshaft.
Check Technical Product Information (TPI) 2014909 (Rest of World (RoW)), for a worn Intake Camshaft. This Technical Product Information (TPI) does NOT list in the Audi A6 (4F) BPJ Engine even though it is effected as well,
so check for a worn Intake Camshaft of these too! When found on 2009 Audi 3.2 FSI AVS Engines, if Diagnostic Trouble Code (DTC) 000022/P0016 is flagged,
please see Technical Service Bulletin (TSB) 15-09-04.

Diesel:
When found on Common Rail TDI engines, please see Technical Service Bulletin (TSB) 01-10-11 (Technical Product Information (TPI) 2023624).
When found on Audi Common Rail V6, V8 and V12 TDI engines, please see Technical Product Information (TPI) 2020693. After mechanical all repairs are made Fuel Pressure Regulator Valve (N276) may need to be adapted and the EDC may need to be flash updated on the Audi Dealer level.

Tech Notes:
There is a service bulletin for the following Volkswagen vehicles:
Volkswagen Eos 2006-2007.
Volkswagen GTI 2006-2007.
Volkswagen Jetta 2005-2007.
Volkswagen Passat 2006-2007.
Volkswagen Passat Wagon 2006-2007.
Volkswagen
Factory Service Bulletin OBDII Code P0087 (http://www.goapr.com/images/support/tsb/15-09-03%20(2015153)%2016%20Dec%202009%20-%20MIL%20ON,%20DTC%20P0087,%20P1093%20or%20P2293.p df)


When is the code detected?:
The Engine Control Module (ECM) has determined that the fuel rail pressure is too low for a specific engine RPM.



As taken from my new EOBD II Error Codes (http://www.vwaudiforum.co.uk/forum/showthread.php/97964-EOBD-II-Error-Codes)

[hackman]

Update:

Still no further along with this. Randomly going into limp mode. I have fitted new: in tank lift pump, fuel pressure sensor, fuel filter ( no metal detected in housing) and the control valve on top of the high pressure fuel pump.

Is there a cam ollower issue for these CR tdi engines? Engine code CFGB.

vehicle has a comprehensive vw service history.
I cannot see any kinked fuel pipes.
O did do a running fuel pressure test and figure were pretty close to be fair

This is doing my nut in!

[Crasher]

Lift the back seat up again, take off the cover and take a picture of the fuel delivery unit and it’s pipes, then post it.

[hackman]

Lift the back seat up again, take off the cover and take a picture of the fuel delivery unit and it’s pipes, then post it.


35314

New lift pump - pipes refitted exactly as taken off.

[Crasher]

I think that is right, my pics and info are at work and if this bug I seem to have gets any worse I am not going in tomorrow.....

[Crasher]

Yes that is right, I have seen them the other way around and they still run!

[hackman]

Ok - where do I go from here? - some days it will do it several times and other days not at all.

[Crasher]

I had a Passat in today with the sameish engine, she ran it very low on fuel, it coughed, she refilled it and it now runs terribly with the idle all over the pace and fluctuating rail pressure, I think the high pressure pump has died. Worst thing is we only did a cam belt in the summer and now it has to come part again. Modern low emissions engines, especially diesel, do not make sense.

[hackman]

Mmm, this is really tricky. My car idles fine and (for the most part) drives fine too. Starts well and power delivery is good.

As stated previously, I've changed the lift pump, fuel filter, pressure sensor and the valve atop the hpfp.

I don't want to try changing the hpfp (at great expense!) For it not to be that.

I'll just have to do some logs and maybe post up results/videos.

Thanks for the help so far crasher 😉


QUOTE=Crasher;1094119]I had a Passat in today with the sameish engine, she ran it very low on fuel, it coughed, she refilled it and it now runs terribly with the idle all over the pace and fluctuating rail pressure, I think the high pressure pump has died. Worst thing is we only did a cam belt in the summer and now it has to come part again. Modern low emissions engines, especially diesel, do not make sense.[/QUOTE]

[Crasher]

Embarrassingly I have just noticed it is an A5 sportback, not a Passat, time for new glasses! I have not had any time today as I have been working on handing a project car back and after this ham salad baguette I have a new Golf R to remap so a bit later I will look deeper into the unstable fuel pressure