2008 1.9tdi bxe stalling

[nurseymk5]

Tested at the pump for a voltage, dont seem to have 12v, Just put 12v to the pump, hopefully on the right wire and the pump kicked into life, car started with the 12vs connected to pump and remains running once the temporary 12v is removed. So my pump seems fine.. possibly pointing towards a relay or an issue stopping the relay from working? Still not sure what relay is the fuel pump relay.. and if that is fine where do the wires go that feed/control the relay...

[nurseymk5]

No difference in mine. I only have 1 relay in the box under the bonnet. Still starts after a few cranks and idles fine. Then dies a short while into driving it. No limp mode just dies.

No noises, no idle issues, no knocks bangs smoke fizzling clicking. nothing!!

Whilst idling it seemed to misfire more and more so just tried to drive it round the yard and it dies while driving. Same issue going on?

[nurseymk5]

I may have found the right relay, under the steering wheel a small grey one with 449 written on it? It has a blue and red wire in the back of it same as the fuel pump. If i short out that connector pin to the one with 12 volts on it (red and yellow) the pump kicks into life and the car will then start. So I thought maybe the relay is faulty. Changed it for 2 other known working relays and the problem is still there, is that the right relay? What commands that relay if it is the right one? The other 2 cables to that relay have 3v on them when the keys in the ignition (black and yellow & black and brown) is that right?

[dean.st]

I went to my garage today & it's booked in for Tuesday.

I thought i would try it again this morning and it started with a little struggle. When it started it ran fine. Until i got to the end of my street and i had to stop. Put my foot on the clutch and it cut out. It was a bugger to start but did.

I got to the end of my estate and the same scenario at the junction.

After that it ran fine. There is a little vibration from the engine when idling.

I then took it for a drive to the services, approx 5 miles. It ran spot on. Except when i went to slow right down to pull in to the space. It stalled. Again it was a pig to start but did and then ran fine all the home. The only new thing now is the stall & engine judder.

[nurseymk5]

I haven't taken mine for a long drive just incase it dies and I'm stranded! I got hold of a wiring diagram and it shows another relay alongside the fuel pump relay called "fuel system primer relay" where is that located? Seems to have a wire to a control module but I have no idea what module it is... They both seem to feed the pump.. on the diagram iv got the fuel pump relay is somehow connected to the glow plug control module and I have a glow plug control fault code..? Coincidence? Could the glow plug module be causing the issue? My heard hurts!

VIN: WVWZZZ1KZ8W264596 License Plate:


* * * * * * * * Address 01: Engine * * * Labels: 03G-906-016-BKC.clb
Control Module Part Number: 03G 906 021 PM * *HW: 03G 906 021 AN
* Component and/or Version: R4 1,9L EDC G000AG 1136
* * * * * *Software Coding: 0000078
* * * * * * Work Shop Code: WSC 01392 785 00200
* * * * * * * * * * * VCID: 79F9E2F0303C4887DE-802C
4 Faults Found:

013112 - Control Circuit for Glow Plug Controller 1
* * * * * * * *P3338 - 000 - Electrical Malfunction
* * * * * * *Freeze Frame:
* * * * * * * * * * Fault Status: 01100000
* * * * * * * * * * Fault Priority: 3
* * * * * * * * * * Fault Frequency: 1
* * * * * * * * * * Reset counter: 255
* * * * * * * * * * Mileage: 225263 km
* * * * * * * * * * Time Indication: 0
* * * * * * * * * * Date: 2000.00.00
* * * * * * * * * * Time: 05:51:14

* * * * * * *Freeze Frame:
* * * * * * * * * * RPM: 798 /min
* * * * * * * * * * Speed: 0.0 km/h
* * * * * * * * * * Load: 0.0 %
* * * * * * * * * * Voltage: 13.98 V
* * * * * * * * * * Bin. Bits: 00001000
* * * * * * * * * * Temperature: 71.1°C
* * * * * * * * * * Bin. Bits: 11111111

005441 - Fuel Pump Relay (J17)
* * * * * * * *P1541 - 000 - Open Circuit
* * * * * * *Freeze Frame:
* * * * * * * * * * Fault Status: 01100000
* * * * * * * * * * Fault Priority: 2
* * * * * * * * * * Fault Frequency: 1
* * * * * * * * * * Reset counter: 255
* * * * * * * * * * Mileage: 225263 km
* * * * * * * * * * Time Indication: 0
* * * * * * * * * * Date: 2000.00.00
* * * * * * * * * * Time: 05:51:15

* * * * * * *Freeze Frame:
* * * * * * * * * * RPM: 798 /min
* * * * * * * * * * Speed: 0.0 km/h
* * * * * * * * * * Load: 0.0 %
* * * * * * * * * * Voltage: 13.98 V
* * * * * * * * * * Bin. Bits: 00001000
* * * * * * * * * * Bin. Bits: * * * *0
* * * * * * * * * * (no units): 33.0

012292 - Relay for Low-Output Preheating of Coolant (J359)
* * * * * * * *P3004 - 000 - Open or Short to Ground - Intermittent
* * * * * * *Freeze Frame:
* * * * * * * * * * Fault Status: 00100000
* * * * * * * * * * Fault Priority: 3
* * * * * * * * * * Fault Frequency: 1
* * * * * * * * * * Reset counter: 255
* * * * * * * * * * Mileage: 225263 km
* * * * * * * * * * Time Indication: 0
* * * * * * * * * * Date: 2000.00.00
* * * * * * * * * * Time: 05:51:15

* * * * * * *Freeze Frame:
* * * * * * * * * * RPM: 798 /min
* * * * * * * * * * Speed: 0.0 km/h
* * * * * * * * * * Load: 0.0 %
* * * * * * * * * * Voltage: 13.98 V
* * * * * * * * * * Bin. Bits: 00001000
* * * * * * * * * * Load: 44.3 %
* * * * * * * * * * Bin. Bits: 11000000

012294 - Relay for High-Output Preheating of Coolant (J360)
* * * * * * * *P3006 - 000 - Open or Short to Ground - Intermittent
* * * * * * *Freeze Frame:
* * * * * * * * * * Fault Status: 00100000
* * * * * * * * * * Fault Priority: 3
* * * * * * * * * * Fault Frequency: 1
* * * * * * * * * * Reset counter: 255
* * * * * * * * * * Mileage: 225263 km
* * * * * * * * * * Time Indication: 0
* * * * * * * * * * Date: 2000.00.00
* * * * * * * * * * Time: 05:51:15

* * * * * * *Freeze Frame:
* * * * * * * * * * RPM: 798 /min
* * * * * * * * * * Speed: 0.0 km/h
* * * * * * * * * * Load: 0.0 %
* * * * * * * * * * Voltage: 13.98 V
* * * * * * * * * * Bin. Bits: 00001000
* * * * * * * * * * Load: 44.3 %
* * * * * * * * * * Bin. Bits: 11000000

[Crasher]

The J643 relay is only fitted to cars with the supplementary Diesel fired heater. The glow plug control unit and fuel pump relay J17 are both powered by fuse SB15 as are the low and high output heater relays on a circuit called D183 so there is your connection and the relay that powers this fuse is the line 30 relay in the engine bay fuse box, the one originally marked 100 on top. Make sure fuse SB15 in the e box is getting power.

[nurseymk5]

The diagram I have is an autodata one, i don't know if you can see what I'm seeing but my relay labels etc are different on this autodata diagram. If you can see autodata I assume the following..
J643 relay - k281 relay
Pump relay j17 - k20 pump relay
Fuse sb15 - engine bay fuse 15
Line 30 relay - k79 relay

Does that tally up to you? If so ill do some more investigation this afternoon and start with that fuse. I know that relay in the engine box is a good one so if fuse 15 is ok with power to it where would you go next just in case? I'll report back my findings either way! Thanks again folks

[Crasher]

The J643 relay is only fitted to cars with the supplementary Diesel fired heater.

The J643 is only fitted to cars with the supplementary heater...

[nurseymk5]

Upon investigation of fuse 15 found corrosion in the fuse holder, bit of contact cleaner and a toothpick and fuel pump seems to be back online and fault codes have gone, fingers crossed that's it sorted! Thank guys! Made any progress on yours Dean?

[dean.st]

Congratulations on curing yours. I've stopped with mine. I'll end up sticking a hammer into it!

I'll see what my garage says on Tuesday.