Fuel pressure fault MK2 Leon TFSI

rudgey

Mk2 Leon TFSI Sport '06
Jul 2, 2008
286
0
near Midland VW ;)
004248 - Intake Manifold Tuning Valve Position Sensor (G336): Open or Short to Plus
P1098 - 001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 39
Mileage: 62341 km
Time Indication: 0
Date: 2000.00.00
Time: 10:44:41

Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 26.0°C
Temperature: 24.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 12.192 V

012555 - Low Pressure Fuel regulation: Fuel Pressure Outside Specification
P310B - 004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 0
Fault Frequency: 16
Mileage: 63150 km
Time Indication: 0
Date: 2000.00.00
Time: 08:44:52

Freeze Frame:
RPM: 1207 /min
Load: 32.9 %
Speed: 0.0 km/h
Temperature: 27.0°C
Temperature: 23.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.224 V

012599 - Intake Manifold Runner Control: Basic Setting not Completed
P3137 - 001 - Upper Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 5
Mileage: 65101 km
Time Indication: 0

Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 31.0°C
Temperature: 28.0°C
Absolute Pres.: 990.0 mbar
Voltage: 12.065 V

Readiness: 0000 0000

Hullo all! Anyone got any ideas/tips on getting these sorted. I know the Intake manifold runner motor probably needs replacing because I'm always doing the basic setting reset. But the other two are new ones!!! Where do i check the wiring for these other two? I'm not so hot on the spanners so go easy on me!!

Thanks.

PS: Posted this in the vag com section, however either no one checks in there or no one that checks in there knows! So sorry in advance for the re post!!:ban:
 

robdf2

Yellow is the best
Feb 21, 2006
3,605
2
location , location
at a gess i would say its the thrust sensor on your fuel pump , its screwed into the left had side as you look at the pump from the front.
 

rudgey

Mk2 Leon TFSI Sport '06
Jul 2, 2008
286
0
near Midland VW ;)
Do these go regularly? It was replaced under warranty in 2009! I know the sensor itself isn't all that expensive (already got a quote from sere ;)) is it a hard job to do yourself?

EDIT: Sorry rob thanks for the advice too!!!
 
Last edited:

DaveysFR

Active Member
May 28, 2008
526
5
Northern Ireland: Limavady
Rudgey,

If it is that sensor on the pump, its only a matter of un clipping the connector and using a spanner of the appropriate size to remove the old one and install the new one.
 

Cuprarob112

Active Member
Dec 6, 2008
403
0
Guess using a torque wrench might come in handy, since these are sensitive and vag advises a torq of 15 nm (as my mind serves me) to secure them (which is very hard to achieve by hand and overtorqing by hand can become costly).
I would advice to be carefull and not touch the hpfp until you know exactly what to do....
 

rudgey

Mk2 Leon TFSI Sport '06
Jul 2, 2008
286
0
near Midland VW ;)
Ok thanks to both of you! I have access to a torque wrench a friend used to be a diesel generator engineer and helps with stuff like this when i need it. Can anyone confirm the torque i need please? Also does the system need bleeding before taking off the sensor? Thread lock or anything needed? And anything else I need to know?
 

Cuprarob112

Active Member
Dec 6, 2008
403
0
there is a diy in the Fact part of this forum. No thread lock needed but bleeding will be nescesary.
If you bleed the system you might just as well change the follower.
 

robdf2

Yellow is the best
Feb 21, 2006
3,605
2
location , location
Do these go regularly? It was replaced under warranty in 2009! I know the sensor itself isn't all that expensive (already got a quote from sere ;)) is it a hard job to do yourself?

EDIT: Sorry rob thanks for the advice too!!!


no problem mate ;)

Rudgey,

If it is that sensor on the pump, its only a matter of un clipping the connector and using a spanner of the appropriate size to remove the old one and install the new one.

thats not true , you will need to bleed the pressure off from the fuel pump first.
just remember when doing this do not open the drivers door with the sensor disconnected from the fuel pump body , or it will prime the pump again and you will have a ready made fountain in your engine bay :blink:
 

rudgey

Mk2 Leon TFSI Sport '06
Jul 2, 2008
286
0
near Midland VW ;)
Hi kev!!! You got pm mate!!! Thanks a million!!! I've fitted it this morning! Jesus tho did u notice all the ally filings inside the induction pipe!!! Cleaned it out with my compressor now and some rag!! Oooo nearly forgot did u charge me for the dead wasps in the cones don't remember seeing them listed as included on ebay ;) lol

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