2000 A8 starts then stops when cold....
10-07-2013, 07:10 AM
#1
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2000 A8 starts then stops when cold....
For many years, in certain temperatures, the A8 would start and die immediately when starting for the first time in a day.
It starts, revs up a little, then dies. Occasionally it starts and then revs up, then the RPMs go low, then it revs up on its own. The car will just rev over and over by itself as if I were reving it, but I am doing nothing.
However, if I feathered a little throttle, I could keep it running. After it gets running a bit, it is fine for the rest of the day, even if I park for hours. It still does the rev thing at the beginning.
But today, it reved up, then died and would not allow me to feather the throttle. But after like 30 tries, it finally started.
Any ideas? It is now becoming a big problem.
Thanks
It starts, revs up a little, then dies. Occasionally it starts and then revs up, then the RPMs go low, then it revs up on its own. The car will just rev over and over by itself as if I were reving it, but I am doing nothing.
However, if I feathered a little throttle, I could keep it running. After it gets running a bit, it is fine for the rest of the day, even if I park for hours. It still does the rev thing at the beginning.
But today, it reved up, then died and would not allow me to feather the throttle. But after like 30 tries, it finally started.
Any ideas? It is now becoming a big problem.
Thanks
10-07-2013, 05:28 PM
#2
AudiWorld Super User
For many years, in certain temperatures, the A8 would start and die immediately when starting for the first time in a day.
It starts, revs up a little, then dies. Occasionally it starts and then revs up, then the RPMs go low, then it revs up on its own. The car will just rev over and over by itself as if I were reving it, but I am doing nothing.
However, if I feathered a little throttle, I could keep it running. After it gets running a bit, it is fine for the rest of the day, even if I park for hours. It still does the rev thing at the beginning.
But today, it reved up, then died and would not allow me to feather the throttle. But after like 30 tries, it finally started.
Any ideas? It is now becoming a big problem.
Thanks
It starts, revs up a little, then dies. Occasionally it starts and then revs up, then the RPMs go low, then it revs up on its own. The car will just rev over and over by itself as if I were reving it, but I am doing nothing.
However, if I feathered a little throttle, I could keep it running. After it gets running a bit, it is fine for the rest of the day, even if I park for hours. It still does the rev thing at the beginning.
But today, it reved up, then died and would not allow me to feather the throttle. But after like 30 tries, it finally started.
Any ideas? It is now becoming a big problem.
Thanks
Could be a throttle body adaptation (alignment) needed...sometimes possible to do without VagCom, but often not.
Need to read the codes and look at this >>>
http://wiki.audiworld.com/index.php/...VAG_COM_Method
10-08-2013, 06:07 AM
#3
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It seems to me that it would be some kind of sensor. It only happens on the first start of the day. Once I get the car started, the rest of the day it starts normally.
Could it be that a sensor is telling the car that the engine is "warm" when it really isn't?
And, it only happens in certain temperatures. If it is REALLY REALLY cold, no problem. If it is hot outside, no problem.
I will check the codes.
Could it be that a sensor is telling the car that the engine is "warm" when it really isn't?
And, it only happens in certain temperatures. If it is REALLY REALLY cold, no problem. If it is hot outside, no problem.
I will check the codes.
Could this have started after a battery disconnection or dead (or near dead) battery event?
Could be a throttle body adaptation (alignment) needed...sometimes possible to do without VagCom, but often not.
Need to read the codes and look at this >>>
http://wiki.audiworld.com/index.php/...VAG_COM_Method
Could be a throttle body adaptation (alignment) needed...sometimes possible to do without VagCom, but often not.
Need to read the codes and look at this >>>
http://wiki.audiworld.com/index.php/...VAG_COM_Method
10-08-2013, 03:47 PM
#4
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Here are the codes. I am registering my vag com.
VCDS-Lite Version: Release 1.2
Tuesday, 08 October 2013, 18:43:57.
Control Module Part Number: 4D0 907 559
Component and/or Version: 4.2L V8/5V G 0005
Software Coding: 06653
Work Shop Code: WSC 12345
VCID: EBA9C4AF8A9D
Additional Info: WAUFL54D8YN003719 AUZ7Z0X1126185
8 Faults Found:
16825 - EVAP Emission Control Sys: Incorrect Flow
P0441 - 35-10 - - - Intermittent
17521 - Shareware Version. To Decode all DTCs
P1113 - 35-10 - Please Register/Activate - Intermittent
16487 - Shareware Version. To Decode all DTCs
P0103 - 35-10 - Please Register/Activate - Intermittent
17953 - Throttle Valve Controller: Malfunction
P1545 - 35-10 - - - Intermittent
17966 - Shareware Version. To Decode all DTCs
P1558 - 35-10 - Please Register/Activate - Intermittent
17953 - Shareware Version. To Decode all DTCs
P1545 - 35-10 - Please Register/Activate - Intermittent
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-10 - - - Intermittent
16891 - Shareware Version. To Decode all DTCs
P0507 - 35-10 - Please Register/Activate - Intermittent
VCDS-Lite Version: Release 1.2
Tuesday, 08 October 2013, 18:43:57.
Control Module Part Number: 4D0 907 559
Component and/or Version: 4.2L V8/5V G 0005
Software Coding: 06653
Work Shop Code: WSC 12345
VCID: EBA9C4AF8A9D
Additional Info: WAUFL54D8YN003719 AUZ7Z0X1126185
8 Faults Found:
16825 - EVAP Emission Control Sys: Incorrect Flow
P0441 - 35-10 - - - Intermittent
17521 - Shareware Version. To Decode all DTCs
P1113 - 35-10 - Please Register/Activate - Intermittent
16487 - Shareware Version. To Decode all DTCs
P0103 - 35-10 - Please Register/Activate - Intermittent
17953 - Throttle Valve Controller: Malfunction
P1545 - 35-10 - - - Intermittent
17966 - Shareware Version. To Decode all DTCs
P1558 - 35-10 - Please Register/Activate - Intermittent
17953 - Shareware Version. To Decode all DTCs
P1545 - 35-10 - Please Register/Activate - Intermittent
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-10 - - - Intermittent
16891 - Shareware Version. To Decode all DTCs
P0507 - 35-10 - Please Register/Activate - Intermittent
10-08-2013, 03:54 PM
#5
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Well I am looking at the code 17978 Engine Start blocked by immobilizer. When I originally searched this online yesterday, it said US Audi A8's did not have immobilizers. Do we have immobilizers on the 2000 A8?
10-08-2013, 06:21 PM
#6
AudiWorld Super User
Plus 2 of those codes are throttle valve codes and one for idle control...and a couple for MAF problems...all of which could cause bad idle or stalling.
Throttle valve codes scream for alignment/adaptation, IF it's not failed part in the throttle valve.
A failed temp sensor could cause overly rich or lean conditions at the right temps...and wouldn't necessarily show up on your gauge. It's a double sensor...one for the gauge and one for the ECM fuel mixture adjustment...commonly one can fail, while the other is good.
I'd clear all codes (if you didn't the immobilizer could be old and unrelated to the idle problem) and go through at least 2 driving cycles or until you get the bad idle again...then read the codes.
10-09-2013, 05:17 AM
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Ok, here are my codes below. The starting problem was definitely the immobilizer, as I remember that key in the car icon being on. That is a separate problem than the rev at starting problem that the car has had.
I cleared the codes. Do you recommend that I reset the throttle body?
Also who knows what fails on the immobilizer? I read that there was a wire in the steering wheel that needs replacing? I figure I might order that part now just so I have it.
Thanks for your help.
VCDS-Lite Version: Release 1.2
Wednesday, 09 October 2013, 07:38:52:29594
Chassis Type: 4D - Audi A8 D2
Scan: 25,01,03,08,11,15,16,17,18,35,37,45,55,56,57,65,67 ,75,76,77,02
-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: None
Controller: Bit teA dre sst
Component: e 17 eingeben
VCID: CEEF1EA119CF
No Faults Found
or DTCs not supported by controller
or a communication error ocurred
-------------------------------------------------------------------------------
Address 01: Engine Labels: None
Controller: 4D0 907 559
Component: 4.2L V8/5V G 0005
Coding: 06653
Shop #: WSC 12345
VCID: EBA9B7358A9D
WAUFL54D8YN003719 AUZ7Z0X1126185
8 Faults Found:
16825 - EVAP Emission Control Sys: Incorrect Flow
P0441 - 35-10 - - - Intermittent
17521 - Oxygen (Lambda) Sensor; B1 S1: Internal Resistance too High
P1113 - 35-10 - - - Intermittent
16487 - Mass Air Flow Sensor (G70): Signal too High
P0103 - 35-10 - - - Intermittent
17953 - Throttle Valve Controller: Malfunction
P1545 - 35-10 - - - Intermittent
17966 - Throttle Actuator (G186): Electrical Malfunction
P1558 - 35-10 - - - Intermittent
17953 - Throttle Valve Controller: Malfunction
P1545 - 35-10 - - - Intermittent
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-10 - - - Intermittent
16891 - Idle Control System RPM: Higher than Expected.
P0507 - 35-10 - - - Intermittent
Readiness: 0000 0000
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-111-ABS.LBL
Controller: 8E0 614 111 A
Component: ABS/EDS 5.3 QUATTRO D10
Coding: 0273004284
Shop #: BB 24334
VCID: 1C4B24E99FB3
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: Redir Fail!
Controller: 4D0 820 043 Q
Component: A8-Klimavollautomat D12
Coding: 00180
Shop #: WSC 02314
VCID: 2A27F231C5E7
2 Faults Found:
00711 - Left Footwell Flap Positioning Motor (V108)
41-00 - Blocked or No Voltage
01592 - Air Quality Sensor (G238)
57-10 - Electric Circuit Failure - Intermittent
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 4D0-959-655-AI8.LBL
Controller: 4D0 959 655 M
Component: Airbag Front+Kopf 1004
Coding: 00427
Shop #: WSC 02314
VCID: 3C0BC4693F73
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 4B0-907-487.LBL
Controller: 4B0 907 487
Component: E Lenkrad Elektronik X03
VCID: E9A5CD3D8061
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 4D0-919-033-MYW.LBL
Controller: 4D0 919 035 AD
Component: D2-KOMBIINSTR. VDO D23
Coding: 02283
Shop #: WSC 02101
VCID: 68A348391B6B
WAUFL54D8YN003719 AUZ7Z0X1126185
2 Faults Found:
01176 - Key
07-10 - Signal too Low - Intermittent
01300 - Control Module for Navigation with CD-Rom (J401)
49-00 - No Communications
-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels: 8D0-862-257.LBL
Controller: 8L0 862 257 N
Component: CV-Pump D11
Coding: 15118
Shop #: WSC 02314
VCID: 40F3B099539B
9 Faults Found:
01367 - Central Locking Pump Run Time Exceeded (Likely Leak)
35-00 - -
01371 - Alarm triggered by Door Contact Switch; Driver's Side
35-00 - -
01372 - Alarm triggered by Door Contact Switch; Rear Passenger Side
35-00 - -
01374 - Alarm triggered by Terminal 15
35-00 - -
01370 - Alarm triggered by Interior Monitoring
35-00 - -
01368 - Alarm triggered by Luggage Compartment Switch
35-00 - -
00991 - Interior Lights
28-00 - Short to Plus
00955 - Key 1
09-00 - Adaptation Limit Surpassed
00956 - Key 2
09-00 - Adaptation Limit Surpassed
-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: None
Controller: 4D0 951 177 B
Component: Innenraumueberw. D04
Coding: 00001
Shop #: WSC 00000
VCID: 28230839DBEB
1 Fault Found:
01350 - Alarm via Theft Warning System; Rear
35-00 - -
-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 4B0-907-357-AUT.LBL
Controller: 4B0 907 357 B
Component: dynamische LWR D02
Coding: 00001
Shop #: WSC 131071
VCID: 27210B05D6F5
2 Faults Found:
00774 - Level Control System Sensor; Left Rear (G76)
28-00 - Short to Plus
00776 - Level Control System Sensor; Left Front (G78)
31-00 - Open or Short to Ground
-------------------------------------------------------------------------------
Address 56: Radio Labels: None
Controller: 4D0 035 195 A
Component: Radio D00
Coding: 00117
Shop #: WSC 02314
VCID: 20331019B3DB
No fault code found.
-------------------------------------------------------------------------------
Address 76: Park Assist Labels: 4D0-919-283.LBL
Controller: 4D0 919 283 PÜt
Component: arkingsystem A8 RDW D04
Coding: 01108
Shop #: WSC 02314
VCID: 8863E8B9BB2B
2 Faults Found:
01546 - Sensor for Parking Aid; Rear Mid-Left (G204)
31-00 - Open or Short to Ground
01628 - Sensor for Parking-Aid; Front Mid-Left (G254)
31-00 - Open or Short to Ground
-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 01L-927-156.LBL
Controller: 4D0 927 156 CP
Component: AG5 01L 4.2l5V USA 1414
Coding: 00002
Shop #: WSC 02314
VCID: 79851D7D70C1
1 Fault Found:
18265 - Load Signal: Error Message from ECU
P1857 - 35-10 - - - Intermittent
End --------------------------------------------------------------------------------------------------
I cleared the codes. Do you recommend that I reset the throttle body?
Also who knows what fails on the immobilizer? I read that there was a wire in the steering wheel that needs replacing? I figure I might order that part now just so I have it.
Thanks for your help.
VCDS-Lite Version: Release 1.2
Wednesday, 09 October 2013, 07:38:52:29594
Chassis Type: 4D - Audi A8 D2
Scan: 25,01,03,08,11,15,16,17,18,35,37,45,55,56,57,65,67 ,75,76,77,02
-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: None
Controller: Bit teA dre sst
Component: e 17 eingeben
VCID: CEEF1EA119CF
No Faults Found
or DTCs not supported by controller
or a communication error ocurred
-------------------------------------------------------------------------------
Address 01: Engine Labels: None
Controller: 4D0 907 559
Component: 4.2L V8/5V G 0005
Coding: 06653
Shop #: WSC 12345
VCID: EBA9B7358A9D
WAUFL54D8YN003719 AUZ7Z0X1126185
8 Faults Found:
16825 - EVAP Emission Control Sys: Incorrect Flow
P0441 - 35-10 - - - Intermittent
17521 - Oxygen (Lambda) Sensor; B1 S1: Internal Resistance too High
P1113 - 35-10 - - - Intermittent
16487 - Mass Air Flow Sensor (G70): Signal too High
P0103 - 35-10 - - - Intermittent
17953 - Throttle Valve Controller: Malfunction
P1545 - 35-10 - - - Intermittent
17966 - Throttle Actuator (G186): Electrical Malfunction
P1558 - 35-10 - - - Intermittent
17953 - Throttle Valve Controller: Malfunction
P1545 - 35-10 - - - Intermittent
17978 - Engine Start Blocked by Immobilizer
P1570 - 35-10 - - - Intermittent
16891 - Idle Control System RPM: Higher than Expected.
P0507 - 35-10 - - - Intermittent
Readiness: 0000 0000
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 8E0-614-111-ABS.LBL
Controller: 8E0 614 111 A
Component: ABS/EDS 5.3 QUATTRO D10
Coding: 0273004284
Shop #: BB 24334
VCID: 1C4B24E99FB3
No fault code found.
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: Redir Fail!
Controller: 4D0 820 043 Q
Component: A8-Klimavollautomat D12
Coding: 00180
Shop #: WSC 02314
VCID: 2A27F231C5E7
2 Faults Found:
00711 - Left Footwell Flap Positioning Motor (V108)
41-00 - Blocked or No Voltage
01592 - Air Quality Sensor (G238)
57-10 - Electric Circuit Failure - Intermittent
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 4D0-959-655-AI8.LBL
Controller: 4D0 959 655 M
Component: Airbag Front+Kopf 1004
Coding: 00427
Shop #: WSC 02314
VCID: 3C0BC4693F73
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 4B0-907-487.LBL
Controller: 4B0 907 487
Component: E Lenkrad Elektronik X03
VCID: E9A5CD3D8061
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 4D0-919-033-MYW.LBL
Controller: 4D0 919 035 AD
Component: D2-KOMBIINSTR. VDO D23
Coding: 02283
Shop #: WSC 02101
VCID: 68A348391B6B
WAUFL54D8YN003719 AUZ7Z0X1126185
2 Faults Found:
01176 - Key
07-10 - Signal too Low - Intermittent
01300 - Control Module for Navigation with CD-Rom (J401)
49-00 - No Communications
-------------------------------------------------------------------------------
Address 35: Centr. Locks Labels: 8D0-862-257.LBL
Controller: 8L0 862 257 N
Component: CV-Pump D11
Coding: 15118
Shop #: WSC 02314
VCID: 40F3B099539B
9 Faults Found:
01367 - Central Locking Pump Run Time Exceeded (Likely Leak)
35-00 - -
01371 - Alarm triggered by Door Contact Switch; Driver's Side
35-00 - -
01372 - Alarm triggered by Door Contact Switch; Rear Passenger Side
35-00 - -
01374 - Alarm triggered by Terminal 15
35-00 - -
01370 - Alarm triggered by Interior Monitoring
35-00 - -
01368 - Alarm triggered by Luggage Compartment Switch
35-00 - -
00991 - Interior Lights
28-00 - Short to Plus
00955 - Key 1
09-00 - Adaptation Limit Surpassed
00956 - Key 2
09-00 - Adaptation Limit Surpassed
-------------------------------------------------------------------------------
Address 45: Inter. Monitor Labels: None
Controller: 4D0 951 177 B
Component: Innenraumueberw. D04
Coding: 00001
Shop #: WSC 00000
VCID: 28230839DBEB
1 Fault Found:
01350 - Alarm via Theft Warning System; Rear
35-00 - -
-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 4B0-907-357-AUT.LBL
Controller: 4B0 907 357 B
Component: dynamische LWR D02
Coding: 00001
Shop #: WSC 131071
VCID: 27210B05D6F5
2 Faults Found:
00774 - Level Control System Sensor; Left Rear (G76)
28-00 - Short to Plus
00776 - Level Control System Sensor; Left Front (G78)
31-00 - Open or Short to Ground
-------------------------------------------------------------------------------
Address 56: Radio Labels: None
Controller: 4D0 035 195 A
Component: Radio D00
Coding: 00117
Shop #: WSC 02314
VCID: 20331019B3DB
No fault code found.
-------------------------------------------------------------------------------
Address 76: Park Assist Labels: 4D0-919-283.LBL
Controller: 4D0 919 283 PÜt
Component: arkingsystem A8 RDW D04
Coding: 01108
Shop #: WSC 02314
VCID: 8863E8B9BB2B
2 Faults Found:
01546 - Sensor for Parking Aid; Rear Mid-Left (G204)
31-00 - Open or Short to Ground
01628 - Sensor for Parking-Aid; Front Mid-Left (G254)
31-00 - Open or Short to Ground
-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 01L-927-156.LBL
Controller: 4D0 927 156 CP
Component: AG5 01L 4.2l5V USA 1414
Coding: 00002
Shop #: WSC 02314
VCID: 79851D7D70C1
1 Fault Found:
18265 - Load Signal: Error Message from ECU
P1857 - 35-10 - - - Intermittent
End --------------------------------------------------------------------------------------------------
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