Boost pressure problem

[yakka]

I have had this problem, Glow Plug light comes on, turbo stops working, cruise control stops working.
Error message when scanned was:

Tuesday,11,June,2013,11:36:10:32264
VCDS Version: Release 11.11.3
Data version: 20120401



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Chassis Type: 7H - VW Transporter
Scan: 01 02 03 08 09 0B 0D 15 16 17 18 19 1C 22 2D 37 45 46 47 56
57 6E 76 77 78 7D

VIN: WV2ZZZ7HZ9H087280 Mileage: 191130km/118762miles
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Address 01: Engine Labels: 070-906-016-BPC.clb
Part No SW: 070 906 016 EC HW: 070 906 016 EC
Component: R5 2,5L EDC G000SG 2539
Revision: --H07--- Serial number: VWZ7Z0H0433216
Coding: 0051072
Shop #: WSC 02756 790 00000
VCID: 55AB9F8DFF1A771

1 Fault Found:
000568 - Manifold Pressure / Boost Sensor (G31)
P0238 - 000 - Signal too High - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 1
Fault Frequency: 181
Mileage: 185839 km
Time Indication: 0

Freeze Frame:
RPM: 1323 /min
Speed: 52.0 km/h
Load: 7.5 %
Voltage: 14.52 V
Bin. Bits: 00101100
Absolute Pres.: 1060.8 mbar
Absolute Pres.: 2580.6 mbar
Any help appreciated


regards

Chris 2008 98 kw caravelle

[vdubmotorworx]

just to start with take the 2 screws out of the coolant tank and move to one side.. below there you will see a turbo pipe with the pressure sensor fitted into it... check the connector plug especially the end wire..the brown one... ive had to repair about 5 of these due to being broken off right at the connector housing...VDUB...

[yakka]

will do that, should have given a bit more info, as soon as I start of the glow plug light will come on and no turbo, however after driving for approx 1 hour, have turned car off for fuel and when restarted no glow plug and car goes very well indeed, then maybe 2 hours later the fault reoccurs and will not clear it always seems associated with backing off the throttle not accelerating.

regards

Chris

[yakka]

will do that, should have given a bit more info, as soon as I start of the glow plug light will come on and no turbo, however after driving for approx 1 hour, have turned car off for fuel and when restarted no glow plug and car goes very well indeed, then maybe 2 hours later the fault reoccurs and will not clear it always seems associated with backing off the throttle not accelerating.

regards

Chris

[vdubmotorworx]

check the wire first mate and then we will go further into it... make sure you give the wire a little tug as ive seen a couple just held on by a strand or 2 inside the plug... VDUB..

[yakka]

I have had a quick look, the sensor wires have electrical tape around them, but I got no further as had to go some where.I had this problem once before and the ultra tune bods must have had a look here as well. Will have to wait until weekend. thanks so much for these responses

regards

Chris Clarke

[vdubmotorworx]

take the tape off.. ive also seen a poor repair fail! VDUB...

[yakka]

broken wire, red with green stripe, going into no. 4 slot.
this is a tiny wire what is the best way to fix it, (looks like it was repaired last time)

regards

Chris

[vdubmotorworx]

thats the one! slot 4! depending on the amount of wire from the plug you may be able to join with a crimp heat shrink connector or vw sell the pint cimplete with about 20cms of wire attached...VDUB...

[yakka]

I have all the bits and a soldering Iron and will do the work this weekend
chris

[yakka]

Bought the plug & 4 wires from VW cost $55, soldering Iron and solder $20, electrical tape $3.50, vag com diagnostic from UK $125, did the work day and problem so far fixed and all codes cleared.

Thanks so much for the help

[vdubmotorworx]

Well done mate...VDUB...