Hi, I'm Doug with an '06 VR3.6L Passat 2WD.
The top mechanic in town (also a Ross-Tech customer, of course) replaced the throttle pedal; the VW Dealer where I bought the car new replaced the TB (Throttle Body) electrical connector; and the top VW dealer mechanic in our region has no diagnosis. So now, my town mechanic gave me the fault codes and suggested I try this forum:
000289 - Throttle Position Sensor (G69): Implausible Signal
005476 - Throttle Actuator (J338): Under-Voltage during Basic Setting
001287 - Idle Control System RPM: Higher than Expected
The title above summarizes the problem: idle hunt, accompanied by occasional misfire, which is followed by a surge in RPM. The surge often trips the check engine light for open loop mode, and occasionally the surge trips into limp home (20MPH max) mode.
Temperature is a major factor. Cold start or air temps below 50 Fahrenheit seem to have less problems; warm start or air temps above 90 Fahrenheit can result in immediate failure to limp home mode. Octane is a secondary factor: 87 octane seems to be more problematic, 93 octane seems to be less problematic.
I read on the Ross-Tech Garage forum that O2 sensors are wired into the TB circuit on the 2.0L motor, and could cause these kinds of problems without throwing an O2 fault code. I've also read that a low battery voltage could be the cause.
Any suggestions on a cost effective approach to replacing parts, lowest cost with highest likelihood of success??? I can turn a wrench; heck I even completely rebuilt a V8, but that was a 1970 Chevy with a 4-barrel carb and points.
UPDATE 1:
Ok, mechanic re-ran Autoscan, after failure into openloop mode, and even more fault codes were found. Here's the current scan:
UPDATE 2:
Immediately after running the above autoscan, here's what happened. With outside air temp 33F and motor temperature gauge at 160F, motor started with ESP and Antiskid Lights, but I believe it was in closed loop mode. Engine missed everytime I attempted to accelerate, could surge up to 2000 RPM, then miss and fall to below 500 RPM before firing again. After about 60 seconds, the motor temp gauge increased to 200F and the car performed perfectly; the only Light on was Check Engine, but otherwise perfect acceleration and its 800 RPM idle was absolutely steady and smooth.
My drive home was for two miles, and the car has now been parked for about 10 minutes. I'm about to take another short 4 mile trip, and if any further symptoms I can post them.
UPDATE 3:
After the 10 minutes of being parked, I started the engine and it idled smooth at 750RPM. No lights, even the Check Engine light was off. However, with my foot on the break pedal and shifting into Drive, the load on the engine resulted in a mis-fire and the engine died. This is a new symptom, and these symptoms which started over a year ago are very gradually becoming more severe. After restarting the engine, I held the accelerator pedal at 1000 RPM before shifting into Drive, and the car performed perfectly again, excellent acceleration, no Check Engine light, and smooth idle.
Thanks in advance!
Doug
The top mechanic in town (also a Ross-Tech customer, of course) replaced the throttle pedal; the VW Dealer where I bought the car new replaced the TB (Throttle Body) electrical connector; and the top VW dealer mechanic in our region has no diagnosis. So now, my town mechanic gave me the fault codes and suggested I try this forum:
000289 - Throttle Position Sensor (G69): Implausible Signal
005476 - Throttle Actuator (J338): Under-Voltage during Basic Setting
001287 - Idle Control System RPM: Higher than Expected
The title above summarizes the problem: idle hunt, accompanied by occasional misfire, which is followed by a surge in RPM. The surge often trips the check engine light for open loop mode, and occasionally the surge trips into limp home (20MPH max) mode.
Temperature is a major factor. Cold start or air temps below 50 Fahrenheit seem to have less problems; warm start or air temps above 90 Fahrenheit can result in immediate failure to limp home mode. Octane is a secondary factor: 87 octane seems to be more problematic, 93 octane seems to be less problematic.
I read on the Ross-Tech Garage forum that O2 sensors are wired into the TB circuit on the 2.0L motor, and could cause these kinds of problems without throwing an O2 fault code. I've also read that a low battery voltage could be the cause.
Any suggestions on a cost effective approach to replacing parts, lowest cost with highest likelihood of success??? I can turn a wrench; heck I even completely rebuilt a V8, but that was a 1970 Chevy with a 4-barrel carb and points.
UPDATE 1:
Ok, mechanic re-ran Autoscan, after failure into openloop mode, and even more fault codes were found. Here's the current scan:
Code:
VCDS Version: Release 12.12.0
Data version: 20130910
Wednesday,26,March,2014,08:37:02:52823
Chassis Type: 3C (3C0)
Scan: 01 02 03 08 09 0F 15 16 17 19 1C 25 36 42 44 46 52 53 56 62
65 72
VIN: WVWEU73C16P085939 Mileage: 113260km/70376miles
00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: Malfunction 0010
03-ABS Brakes -- Status: Malfunction 0010
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
0F-Digital Radio -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
1C-Position Sensing -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
42-Door Elect, Driver -- Status: Malfunction 0010
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: Malfunction 0010
53-Parking Brake -- Status: OK 0000
56-Radio -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
65-Tire Pressure -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine Labels: 03H-906-032-BLV.lbl
Part No SW: 03H 997 033 N HW: Hardware No
Component: P3.6-FSI-LEV2 G00 2371
Revision: --H08--- Serial number: VWZCZ000000000
Coding: 0000075
Shop #: WSC 00028 028 00001
VCID: 38758C4C4B9DDCDE6C3-806D
7 Faults Found:
000289 - Throttle Position Sensor (G69)
P0121 - 008 - Implausible Signal - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 84
Reset counter: 255
Mileage: 104825 km
Time Indication: 0
Date: 2013.03.01
Time: 14:16:04
Freeze Frame:
RPM: 1392 /min
Load: 34.1 %
Speed: 68.0 km/h
Temperature: 89.0°C
Temperature: 27.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.224 V
005497 - Throttle Actuator (J338)
P1579 - 001 - Adaptation Not Started - Intermittent
Freeze Frame:
Fault Status: 00100001
Fault Priority: 0
Fault Frequency: 7
Reset counter: 255
Mileage: 0 km
Time Indication: 0
Freeze Frame:
RPM: 253 /min
Load: 87.4 %
Speed: 0.0 km/h
Temperature: 78.0°C
Temperature: 45.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 10.033 V
001287 - Idle Control System RPM
P0507 - 001 - Higher than Expected. - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100001
Fault Priority: 0
Fault Frequency: 7
Reset counter: 255
Mileage: 112963 km
Time Indication: 0
Date: 2014.03.16
Time: 16:54:01
Freeze Frame:
RPM: 957 /min
Load: 38.4 %
Speed: 0.0 km/h
Temperature: 77.0°C
Temperature: 40.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 13.970 V
000369 - Fuel Trim; Bank 1
P0171 - 004 - System Too Lean - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 0
Fault Frequency: 3
Reset counter: 255
Mileage: 113005 km
Time Indication: 0
Date: 2014.03.18
Time: 16:29:29
Freeze Frame:
RPM: 714 /min
Load: 47.4 %
Speed: 0.0 km/h
Temperature: 78.0°C
Temperature: 16.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 13.970 V
000372 - Fuel Trim; Bank 2
P0174 - 004 - System Too Lean - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 0
Fault Frequency: 3
Reset counter: 255
Mileage: 113065 km
Time Indication: 0
Date: 2014.03.19
Time: 06:08:43
Freeze Frame:
RPM: 714 /min
Load: 47.4 %
Speed: 0.0 km/h
Temperature: 78.0°C
Temperature: 16.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 13.970 V
000257 - Mass Air Flow Sensor (G70)
P0101 - 008 - Implausible Signal
Freeze Frame:
Fault Status: 01101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 113255 km
Time Indication: 0
Date: 2014.03.25
Time: 13:44:38
Freeze Frame:
RPM: 1605 /min
Load: 23.9 %
Speed: 63.0 km/h
Temperature: 89.0°C
Temperature: 17.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 13.970 V
000545 - Angle Sensor 2 for Throttle (G188)
P0221 - 008 - Implausible Signal - Intermittent
Freeze Frame:
Fault Status: 00101000
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 113260 km
Time Indication: 0
Date: 2014.03.25
Time: 17:31:06
Freeze Frame:
RPM: 1358 /min
Load: 23.9 %
Speed: 53.0 km/h
Temperature: 70.0°C
Temperature: 15.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.224 V
Readiness: 0000 0000
-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 09G-927-750.lbl
Part No SW: 09G 927 750 HK HW: 09G 927 750 AJ
Component: AQ 250 6F 1271
Revision: 00H38000 Serial number:
Coding: 0000072
Shop #: WSC 08112 444 84966
VCID: 8103A1A8D8C7DD161BD-80D4
1 Fault Found:
01314 - Engine Control Module
013 - Check DTC Memory
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 6
Reset counter: 0
Mileage: 27810 km
Time Indication: 0
Date: 2008.03.31
Time: 14:42:51
-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 3C0-614-095-C2.clb
Part No SW: 3C0 614 095 Q HW: 3C0 614 095 Q
Component: ESP 440 C2 H015 0003
Revision: H015 Serial number: 0658213673
Coding: 0112077
Shop #: WSC 00028 028 00001
VCID: 3065B46CA3ED049E243-8065
1 Fault Found:
01314 - Engine Control Module
013 - Check DTC Memory
Freeze Frame:
Fault Status: 00101101
Fault Priority: 3
Fault Frequency: 254
Reset counter: 32
Mileage: 104825 km
Time Indication: 0
Date: 2013.03.01
Time: 14:16:05
-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 3C0-907-044.lbl
Part No SW: 3C0 907 044 Q HW: 3C0 907 044 Q
Component: ClimatronicPQ46 042 0202
Revision: 00042004 Serial number: 00000000000000
Shop #: WSC 00000 000 00000
VCID: 2F67B710BED31B663D9-807A
1 Fault Found:
01274 - Air Flow Flap Positioning Motor (V71)
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 3
Fault Frequency: 43
Reset counter: 73
Mileage: 112445 km
Time Indication: 0
Date: 2014.02.27
Time: 13:45:34
-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 3C0-937-049-23-H.lbl
Part No SW: 3C0 937 049 J HW: 3C0 937 049 J
Component: Bordnetz-SG H37 1301
Revision: 00H37000 Serial number: 00000003558757
Coding: F58C8F0340041A00000A00000F00000000285D435C0000
Shop #: WSC 00028 028 00001
VCID: 3065B46CA3ED049E243-8065
Subsystem 1 - Part No: 3C1 955 119 Labels: 1KX-955-119.CLB
Component: Wischer VW461 012 0503
Coding: 00065493
Shop #: WSC 00028
Subsystem 2 - Part No: 1K0 955 559 T Labels: 1K0-955-559-AF.CLB
Component: RegenLichtSens 011 1110
Coding: 00208933
Shop #: WSC 00028
1 Fault Found:
00979 - Lamp for Low Beam; Right (M31)
010 - Open or Short to Plus
Freeze Frame:
Fault Status: 01101010
Fault Priority: 1
Fault Frequency: 1
Reset counter: 38
Mileage: 113231 km
Time Indication: 0
Date: 2014.03.25
Time: 10:24:00
Freeze Frame:
ON
Voltage: 14.40 V
ON
ON
OFF
OFF
OFF
-------------------------------------------------------------------------------
Address 0F: Digital Radio Labels: 8E0-035-593-SIR.lbl
Part No SW: 8E0 035 593 D HW: 8E0 035 593 D
Component: SDAR SIRIUS H03 0060
Revision: 00000000 Serial number: AUZ4Z7E7013799
Shop #: WSC 00000 000 00000
VCID: 2A51A60485317E4EEA7-807F
1 Fault Found:
02635 - Tuner Not Enabled/Activated
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 1
Mileage: 107973 km
Time Indication: 0
Date: 2013.07.15
Time: 00:00:00
-------------------------------------------------------------------------------
Address 15: Airbags Labels: 3C0-909-605.lbl
Part No SW: 3C0 909 605 G HW: 3C0 909 605 G
Component: 0E AIRBAG VW8R 029 2421
Revision: 09029000 Serial number: 0039VSKMWP0+
Coding: 0012357
Shop #: WSC 00028 028 00001
VCID: 2A51A60485317E4EEA7-807F
Subsystem 1 - Part No: 3C0 959 339 A
Component: BF-Gewichtsens. 006 0002
Subsystem 2 - Serial number: 00000000030SJN
Subsystem 3 - Serial number: 0001.01.000000600000000000ÿ†63
Subsystem 4 - Serial number: 000000ÿ†6332MSME0C0C0B66Iÿ†63
Subsystem 5 - Serial number: C0B66Iÿ†6342MSME0C090A4AHÿ†63
Subsystem 6 - Serial number: 90A4AHÿ†6351HTS68SDA9OF2Wÿ†63
Subsystem 7 - Serial number: A9OF2Wÿ†6361HTS65CHMPKU2Eÿ†63
Subsystem 8 - Serial number: MPKU2Eÿ†63727TS65CHE4PB37ÿ†63
Subsystem 9 - Serial number: E4PB37ÿ†63827TS65CHEO6836ÿ
Subsystem 10 - Serial number: EO6836ÿ
No fault code found.
-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 3C0-953-549-SW20.lbl
Part No SW: 3C0 953 549 E HW: 3C0 953 549 E
Component: J0527 0015
Revision: 00005000 Serial number: 3C5953507P
Coding: 0002111
Shop #: WSC 00028 028 00001
VCID: 2E59AA14B9D9126E36F-807B
Subsystem 1 - Part No: XXXXXXXXXXX
Component: E0221 006 0080
No fault code found.
-------------------------------------------------------------------------------
Address 17: Instruments Labels: 3C0-920-xxx-17.lbl
Part No SW: 3C0 920 970 R HW: 3C0 920 970 R
Component: KOMBIINSTRUMENT VD1 4240
Revision: X0033000 Serial number: 00000000000000
Coding: 0007205
Shop #: WSC 08112 444 54000
VCID: 336FBB6052FB3F86591-8066
No fault code found.
-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 3C0-907-530-V1.clb
Part No SW: 3C0 907 530 C HW: 3C0 907 951 A
Component: Gateway 007 0040
Revision: 00007000 Serial number: 0700C059170479
Coding: 3FFD0F04D31002
Shop #: WSC 00028 028 00001
VCID: 21434128F807BD16BBD-8074
No fault code found.
-------------------------------------------------------------------------------
Address 1C: Position Sensing Labels: 1Kx-919-xxx-1C.lbl
Part No SW: 3C0 919 965 HW: 3C0 919 965
Component: Kompass 005 0002
Revision: 00005000 Serial number: 1166279TNY3904
Shop #: WSC 00028 028 00001
VCID: EDDBED18F45F2976CF5-80B8
No fault code found.
-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 3C0-959-433-25.clb
Part No SW: 3C0 959 433 C HW: 3C0 959 433 C
Component: IMMO 041 0364
Revision: 00041000 Serial number: VWZCZ000000000
Shop #: WSC 08112 444 104920
VCID: 2A51A60485317E4EEA7-807F
Subsystem 1 - Part No: 3C0 905 861 J
Component: ELV 029 0380
3C0905861J ELV 029 0380
No fault code found.
-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr Labels: 3C0-959-760.lbl
Part No SW: 3C0 959 760 B HW: 3C0 959 760 B
Component: Sitzverstellung 0701
Revision: 00003000 Serial number: 00000000000000
Shop #: WSC 00000 000 00000
VCID: 2C5DA01C8FC5607E18B-8079
No fault code found.
-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels: 1K0-959-701-MAX2.lbl
Part No: 1K0 959 701 L
Component: Tuer-SG 024 2461
Coding: 0001463
Shop #: WSC 00028 028 00001
VCID: 37778F704683D3A6659-8062
1 Fault Found:
00932 - Electric Window Motor; Drivers Side (V147)
005 - No or Incorrect Basic Setting / Adaptation - Intermittent
-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1Kx-909-14x-44.clb
Part No: 3C1 909 144 B
Component: EPS_ZFLS Kl.5 D04 1607
Shop #: WSC 00000 000 00000
VCID: 244D483CE715A83ED0B-8071
No fault code found.
-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 3C0-959-433-46.clb
Part No SW: 3C0 959 433 C HW: 3C0 959 433 C
Component: KSG PQ46 RDK 041 0213
Revision: 00041000 Serial number: VWZCZ000000000
Coding: 13910F8801862E521804141FF00A8F0E081800
Shop #: WSC 08112 444 84966
VCID: 2A51A60485317E4EEA7-807F
Subsystem 1 - Component: Sounder n.mounted
Subsystem 2 - Component: NGS n.mounted
Subsystem 3 - Component: IRUE n.mounted
1 Fault Found:
01038 - Central Locking Thermal Protection
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 4
Fault Frequency: 3
Reset counter: 71
Mileage: 113232 km
Time Indication: 0
Date: 2014.03.25
Time: 10:29:45
-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels: 1K0-959-702-MAX2.lbl
Part No: 1K0 959 702 L
Component: Tuer-SG 024 2461
Coding: 0001462
Shop #: WSC 00028 028 00001
VCID: 38758C4C4B9DDCDE6C3-806D
3 Faults Found:
00933 - Electric Window Motor; Passenger Side (V148)
005 - No or Incorrect Basic Setting / Adaptation - Intermittent
01553 - Motor for Central Locking; Passenger Door (V57); Lock
012 - Electrical Fault in Circuit
00929 - Locking Module for Central Locking; Front Passenger Side (F221)
008 - Implausible Signal
-------------------------------------------------------------------------------
Address 53: Parking Brake Labels: 3C0-907-801-53.clb
Part No SW: 3C0 907 801 B HW: 3C0 907 801 B
Component: EPB VC8HC001 013 0001
Revision: 013
Coding: 0000013
Shop #: WSC 00028 028 00001
VCID: 21434128F807BD16BBD-8074
No fault code found.
-------------------------------------------------------------------------------
Address 56: Radio Labels: 1K0-035-1xx-56.lbl
Part No SW: 1K0 035 180 C HW: 1K0 035 180 C
Component: Radio PM6 016 0017
Revision: 00016000 Serial number: VWZ5Z7E2028818
Coding: 0040400
Shop #: WSC 00028 028 00001
VCID: 2045442CF30DB41EB43-8075
No fault code found.
-------------------------------------------------------------------------------
Address 62: Door, Rear Left Labels: 1K0-959-703-GEN2.lbl
Part No: 1K0 959 703 D
Component: Tuer-SG 021 2432
Coding: 0000144
Shop #: WSC 00028 028 00001
VCID: 3163B168A8E70D962BD-8064
No fault code found.
-------------------------------------------------------------------------------
Address 65: Tire Pressure Labels: 3C0-959-433-65.lbl
Part No SW: 3C0 959 433 C HW: 3C0 959 433 C
Component: RDK 0391
Revision: 00041000 Serial number: VWZCZ000000000
Coding: 0100101
Shop #: WSC 00028 028 00001
VCID: 2A51A60485317E4EEA7-807F
No fault code found.
-------------------------------------------------------------------------------
Address 72: Door, Rear Right Labels: 1K0-959-704-GEN2.lbl
Part No: 1K0 959 704 D
Component: Tuer-SG 021 2432
Coding: 0000144
Shop #: WSC 00028 028 00001
VCID: 3261BE64ADE1368E527-8067
No fault code found.
End ---------------------------------------------------------------------
Immediately after running the above autoscan, here's what happened. With outside air temp 33F and motor temperature gauge at 160F, motor started with ESP and Antiskid Lights, but I believe it was in closed loop mode. Engine missed everytime I attempted to accelerate, could surge up to 2000 RPM, then miss and fall to below 500 RPM before firing again. After about 60 seconds, the motor temp gauge increased to 200F and the car performed perfectly; the only Light on was Check Engine, but otherwise perfect acceleration and its 800 RPM idle was absolutely steady and smooth.
My drive home was for two miles, and the car has now been parked for about 10 minutes. I'm about to take another short 4 mile trip, and if any further symptoms I can post them.
UPDATE 3:
After the 10 minutes of being parked, I started the engine and it idled smooth at 750RPM. No lights, even the Check Engine light was off. However, with my foot on the break pedal and shifting into Drive, the load on the engine resulted in a mis-fire and the engine died. This is a new symptom, and these symptoms which started over a year ago are very gradually becoming more severe. After restarting the engine, I held the accelerator pedal at 1000 RPM before shifting into Drive, and the car performed perfectly again, excellent acceleration, no Check Engine light, and smooth idle.
Thanks in advance!
Doug
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