Loss of power - 2.7T - loose tube
#1
07-07-2011, 07:24 PM
Loss of power - 2.7T - loose tube
I was logging data when something popped and I lost power/boost.
Built a boost leak tester and connected compressed air to the intake Y pipe (capped off PCV).
Found LOTS of air blowing out a pipe that starts right up on top, under the PCV valve, goes forward on top of the engine, then down and back. The end of that tube is loose, and the air blow out of a hole that feels as if the end of the tube should be in there. The hole feels as if it is a cast on section.
What is the sensor on top of the engine, under the PCV called (see first photo)?
What runs through the tube which goes from the top all the way to the botton on driver side?
I pushed the alu tube into that hole. Seems a good fit. But how is it held in there? Glue?
Can someone explain what I need to do to get it right?
Photos below show where to tube starts and where it goes down low under engine on drivers side; air blows where tube ends
http://i853.photobucket.com/albums/a...009-Copy-1.jpg
http://i853.photobucket.com/albums/a...830-Copy-1.jpg
Built a boost leak tester and connected compressed air to the intake Y pipe (capped off PCV).
Found LOTS of air blowing out a pipe that starts right up on top, under the PCV valve, goes forward on top of the engine, then down and back. The end of that tube is loose, and the air blow out of a hole that feels as if the end of the tube should be in there. The hole feels as if it is a cast on section.
What is the sensor on top of the engine, under the PCV called (see first photo)?
What runs through the tube which goes from the top all the way to the botton on driver side?
I pushed the alu tube into that hole. Seems a good fit. But how is it held in there? Glue?
Can someone explain what I need to do to get it right?
Photos below show where to tube starts and where it goes down low under engine on drivers side; air blows where tube ends
http://i853.photobucket.com/albums/a...009-Copy-1.jpg
http://i853.photobucket.com/albums/a...830-Copy-1.jpg
#2
07-17-2011, 08:44 PM
Tube fixed, but now worse running; codes 16487, 17965, 17834, 17743
I lost boost. Leak test and found a tube at the driver side of engine, down below close to exhaust manifold, on the intake side of turbo (it seems). The alu tube had come out of a hole in a flange. Rivet on bracket came off allowing tube to slide out.
Put tube back in and used wire to secure in place (instead of rivet) and JB Weld.
Today, car barely running, hickups, ABS and CEL come in. Managed to drive by very carefully massaging the throttle. ABS goes on/off, but CEL now is permanently on.
I unplugged teh N80 connector, but that did not help. Put it back on.
When back, checked the tube. Seems to still be in place.
Tube runs up the side of the engine, under the intake Y tube. There merges with same tube coming from right side. Going to lots of other hoses that connect to as sensor (Evaporative Emission (EVAP) canister purge regulator valve -N80).
I have seen 17965 charge pressure control error before.
I installed Forge 007 a few weeks ago, but would not expect to have an impact?
Any suggestions?
4 Faults Found:
16487 - Mass Air Flow Sensor (G70): Signal too High
P0103 - 35-10 - - - Intermittent
17965 - Charge Pressure Control: Positive Deviation
P1557 - 35-00 - -
17834 - EVAP Purge Valve (N80): Open Circuit
P1426 - 35-10 - - - Intermittent
17743 - Engine Torque Monitor 2: Control Limit Exceeded
P1335 - 35-10 - - - Intermittent
Readiness: 0010 0000
VCDS Version: Release 10.6.4
Data version: 20110418
Sunday,17,July,2011,19:36:11:22662
Chassis Type: 4B - Audi A6 C5
Scan: 01 02 03 06 08 15 16 17 18 22 34 35 36 37 45 55 56 57 65 67
75 76 77
VIN: WA1YD64B92N031219
-------------------------------------------------------------------------------
Address 01: Engine Labels: 078-907-551-AZA.lbl
Part No: 8D0 907 551 M
Component: 2.7l V6/5VT G 0002
Coding: 06712
Shop #: WSC 87119
VCID: 3469E80D2EAB
4 Faults Found:
16487 - Mass Air Flow Sensor (G70): Signal too High
P0103 - 35-10 - - - Intermittent
17965 - Charge Pressure Control: Positive Deviation
P1557 - 35-00 - -
17834 - EVAP Purge Valve (N80): Open Circuit
P1426 - 35-10 - - - Intermittent
17743 - Engine Torque Monitor 2: Control Limit Exceeded
P1335 - 35-10 - - - Intermittent
Readiness: 0010 0000
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8D0-907-389.lbl
Part No: 4Z7 907 389
Component: ABS/ESP allrad D57
Coding: 06395
Shop #: WSC 03089
VCID: 091769F919A9
2 Faults Found:
18256 - Please check DTC Memory of Engine Controller
P1848 - 35-10 - - - Intermittent
18265 - Load Signal: Error Message from ECU
P1857 - 35-10 - - - Intermittent
-------------------------------------------------------------------------------
Address 06: Seat Mem. Pass Labels: None
Part No: 4B0 959 760 C
Component: Sitzmemory R1 BF 0102
Coding: 00003
Shop #: WSC 00000
VCID: 2D5FFD69CD81
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 4B0-820-043-MY2.lbl
Part No: 4B0 820 043 AD
Component: A6-Klimavollautomat 0104
Coding: 00010
Shop #: WSC 02335
VCID: 5CB960ADE6BB
1 Fault Found:
01592 - Air Quality Sensor (G238)
37-00 - Faulty
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 4B0-959-655-AI84.lbl
Part No: 4Z7 959 655 E
Component: Airbag 8.4E 3000
Coding: 0000307
Shop #: WSC 02335 785 00200
VCID: 51A78199B179
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 4B0-907-487.lbl
Part No: 4B0 907 487 C
Component: Lenkradelektronik D01
Coding: 00002
Shop #: WSC 02335
VCID: 2C59F06DF69B
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 4B0-920-xxx-17.lbl
Part No: 4B0 920 981 P
Component: KOMBI+WEGFAHRS. VDO D07
Coding: 06264
Shop #: WSC 02050
VCID: 336BEB112BA5
WA1YD64B92N031219 AUZ7Z0A1949696
1 Fault Found:
01314 - Engine Control Module
49-10 - No Communications - Intermittent
-------------------------------------------------------------------------------
Address 34: Level Control Labels: 4Z7-907-553.lbl
Part No: 4Z7 907 553 E
Component: - 2C1A1 D040
Coding: 25500
Shop #: WSC 09999
VCID: 4793AFC14F3D
1 Fault Found:
01316 - ABS Control Module
79-10 - Please Check Fault Codes - Intermittent
-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels: 4B0-962-258.lbl
Part No: 4B0 962 258 J
Component: Central Lock/Alarm D35
Coding: 15885
Shop #: WSC 02325
VCID: 3061E41DDAB3
3 Faults Found:
01366 - Opened Due to Crash Signal
35-00 - -
01561 - Left Rear Door
59-00 - Can't Unlock
01562 - Right Rear Door
59-00 - Can't Unlock
-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr Labels: None
Part No: 4B0 959 760 B
Component: Sitzmemory R1 F 0101
Coding: 00001
Shop #: WSC 00000
VCID: 2C59F06DF69B
No fault code found.
-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 4Z7-907-357.lbl
Part No: 4Z7 907 357
Component: dynamische LWR D06
Coding: 00030
Shop #: WSC 02335
VCID: 040978CD3E8B
No fault code found.
-------------------------------------------------------------------------------
Address 56: Radio Labels: 8E0-035-1xx-56.lbl
Part No: 4B0 035 195 J
Component: symphony II NP2 0008
Coding: 00201
Shop #: WSC 00000
VCID: 27530F41EF7D
No fault code found.
-------------------------------------------------------------------------------
Address 76: Park Assist Labels: 8Z0-919-283.lbl
Part No: 8Z0 919 283
Component: Parkingsyst. A6 RDW D08
Coding: 00186
Shop #: WSC 02335
VCID: 02057ED5249F
No fault code found.
End -------------------------
Put tube back in and used wire to secure in place (instead of rivet) and JB Weld.
Today, car barely running, hickups, ABS and CEL come in. Managed to drive by very carefully massaging the throttle. ABS goes on/off, but CEL now is permanently on.
I unplugged teh N80 connector, but that did not help. Put it back on.
When back, checked the tube. Seems to still be in place.
Tube runs up the side of the engine, under the intake Y tube. There merges with same tube coming from right side. Going to lots of other hoses that connect to as sensor (Evaporative Emission (EVAP) canister purge regulator valve -N80).
I have seen 17965 charge pressure control error before.
I installed Forge 007 a few weeks ago, but would not expect to have an impact?
Any suggestions?
4 Faults Found:
16487 - Mass Air Flow Sensor (G70): Signal too High
P0103 - 35-10 - - - Intermittent
17965 - Charge Pressure Control: Positive Deviation
P1557 - 35-00 - -
17834 - EVAP Purge Valve (N80): Open Circuit
P1426 - 35-10 - - - Intermittent
17743 - Engine Torque Monitor 2: Control Limit Exceeded
P1335 - 35-10 - - - Intermittent
Readiness: 0010 0000
VCDS Version: Release 10.6.4
Data version: 20110418
Sunday,17,July,2011,19:36:11:22662
Chassis Type: 4B - Audi A6 C5
Scan: 01 02 03 06 08 15 16 17 18 22 34 35 36 37 45 55 56 57 65 67
75 76 77
VIN: WA1YD64B92N031219
-------------------------------------------------------------------------------
Address 01: Engine Labels: 078-907-551-AZA.lbl
Part No: 8D0 907 551 M
Component: 2.7l V6/5VT G 0002
Coding: 06712
Shop #: WSC 87119
VCID: 3469E80D2EAB
4 Faults Found:
16487 - Mass Air Flow Sensor (G70): Signal too High
P0103 - 35-10 - - - Intermittent
17965 - Charge Pressure Control: Positive Deviation
P1557 - 35-00 - -
17834 - EVAP Purge Valve (N80): Open Circuit
P1426 - 35-10 - - - Intermittent
17743 - Engine Torque Monitor 2: Control Limit Exceeded
P1335 - 35-10 - - - Intermittent
Readiness: 0010 0000
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8D0-907-389.lbl
Part No: 4Z7 907 389
Component: ABS/ESP allrad D57
Coding: 06395
Shop #: WSC 03089
VCID: 091769F919A9
2 Faults Found:
18256 - Please check DTC Memory of Engine Controller
P1848 - 35-10 - - - Intermittent
18265 - Load Signal: Error Message from ECU
P1857 - 35-10 - - - Intermittent
-------------------------------------------------------------------------------
Address 06: Seat Mem. Pass Labels: None
Part No: 4B0 959 760 C
Component: Sitzmemory R1 BF 0102
Coding: 00003
Shop #: WSC 00000
VCID: 2D5FFD69CD81
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 4B0-820-043-MY2.lbl
Part No: 4B0 820 043 AD
Component: A6-Klimavollautomat 0104
Coding: 00010
Shop #: WSC 02335
VCID: 5CB960ADE6BB
1 Fault Found:
01592 - Air Quality Sensor (G238)
37-00 - Faulty
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 4B0-959-655-AI84.lbl
Part No: 4Z7 959 655 E
Component: Airbag 8.4E 3000
Coding: 0000307
Shop #: WSC 02335 785 00200
VCID: 51A78199B179
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 4B0-907-487.lbl
Part No: 4B0 907 487 C
Component: Lenkradelektronik D01
Coding: 00002
Shop #: WSC 02335
VCID: 2C59F06DF69B
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 4B0-920-xxx-17.lbl
Part No: 4B0 920 981 P
Component: KOMBI+WEGFAHRS. VDO D07
Coding: 06264
Shop #: WSC 02050
VCID: 336BEB112BA5
WA1YD64B92N031219 AUZ7Z0A1949696
1 Fault Found:
01314 - Engine Control Module
49-10 - No Communications - Intermittent
-------------------------------------------------------------------------------
Address 34: Level Control Labels: 4Z7-907-553.lbl
Part No: 4Z7 907 553 E
Component: - 2C1A1 D040
Coding: 25500
Shop #: WSC 09999
VCID: 4793AFC14F3D
1 Fault Found:
01316 - ABS Control Module
79-10 - Please Check Fault Codes - Intermittent
-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels: 4B0-962-258.lbl
Part No: 4B0 962 258 J
Component: Central Lock/Alarm D35
Coding: 15885
Shop #: WSC 02325
VCID: 3061E41DDAB3
3 Faults Found:
01366 - Opened Due to Crash Signal
35-00 - -
01561 - Left Rear Door
59-00 - Can't Unlock
01562 - Right Rear Door
59-00 - Can't Unlock
-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr Labels: None
Part No: 4B0 959 760 B
Component: Sitzmemory R1 F 0101
Coding: 00001
Shop #: WSC 00000
VCID: 2C59F06DF69B
No fault code found.
-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 4Z7-907-357.lbl
Part No: 4Z7 907 357
Component: dynamische LWR D06
Coding: 00030
Shop #: WSC 02335
VCID: 040978CD3E8B
No fault code found.
-------------------------------------------------------------------------------
Address 56: Radio Labels: 8E0-035-1xx-56.lbl
Part No: 4B0 035 195 J
Component: symphony II NP2 0008
Coding: 00201
Shop #: WSC 00000
VCID: 27530F41EF7D
No fault code found.
-------------------------------------------------------------------------------
Address 76: Park Assist Labels: 8Z0-919-283.lbl
Part No: 8Z0 919 283
Component: Parkingsyst. A6 RDW D08
Coding: 00186
Shop #: WSC 02335
VCID: 02057ED5249F
No fault code found.
End -------------------------
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