VR3.6L: Idle Hunt => misfire => rev-up => limp home.

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gdbaldw

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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:

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   ---------------------------------------------------------------------
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
 
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   #2  

DrPeter

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Hello Doug, can you give us a little more information. Perhaps an Auto-Scan of the vehicle, as this also contains important information about the ECM (Part numbers, Hardware and Software numbers, Freeze frame data, etc...). It is by the way, uncommon for the newer ECMs to have the failing O2 sensors take out the TB circuits in the ECM, thank you.
 
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   #3  

gdbaldw

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Dr Peter,

Thanks, and added three updates above.

I feel much safer now knowing that you are manning the Atlas-F Missile Silo.

Best Regards,
Doug
 
   #4  

DrPeter

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Thank you for the posting the requested information.

I see there are two fault codes that may have been overlooked. I believe it maybe possible the other ECM fault codes in your post above, maybe the result of the possible causes listed below.
- P0171-Fuel Trim; Bank 1: System Too Lean
- P0174-Fuel Trim; Bank 2: System Too Lean

Possible causes are:
- Fuel Pump (In tank), Filter and/or fuel pump control
- Intake/exhaust leak
- Injector failure

- Check all of the below when the vehicle is running good to baseline the values, then check again when the symptoms show up. -

Measuring Value Block Group(MVB) - [103] and [140] will show you the current fuel pressures.
MVB-103, field 1 = In tank pump pressure, from G410-Pressure Sensor (4-5bar @ idle, +45 seconds after start)
MVB-140, field 3 = Fuel Rail pressure, from G247-High Pressure Sensor (+/- 5bar from field 2, MVB-140)
MVB-140, field 2 = Specified Rail Pressure
- Testing the in tank pump should be done with a fuel pressure gauge.


Also take a look at the Measuring Value Block Group - [032], here you can find the learned Air/Fuel values.
Field 1/2 are bank 1 Idle/Off Idle and Field 3/4 are bank 2 Idle/Off Idle.
Normal values should be close to 0.0%, (+/-)1% to 2% is acceptable. Any higher than 5% will usually set fault codes.
- look for intake leaks, false air or crank case leaks

Also you can do a quick test to check mixture control, use the [Basic Settings] Group [107]
- Use the [On/Off/Next] to start the test. Engine must be idling, engine 80'C+ and 60 seconds after engine start.
- BS-107 test should run and indicate a pass/fail when complete in field-4.


Keep us informed on how it goes.. and it might be worth purchasing a Ross-Tech interface to do these tests yourself, it will pay for it self and it is easy...
and if you can rebuild a Chevy small block, you can do this ..... bet most people now-a-days do not even know what a quadrajet accelerator pump looks like, ;)

I feel much safer now knowing that you are manning the Atlas-F Missile Silo.
Only every 12hrs, the rest of the time I am fixing cars :)
 
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   #5  

gdbaldw

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Thank you. Will take quite some time, and after will report back.
 
   #6  

gdbaldw

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So, after three weeks onsite at the best VW dealer service in Nassau/Suffolk Counties, their technician ultimately found and solved the problem. The electrical connector to the throttle pedal was failing and needed to be replaced. This was after having tried a new throttle body, checking the fuel pump pressure, etc. Fortunately, being a VW dealer with a parts counter, I was only required to pay for the needed replacement parts. I'm surprised that this connector could gradually degrade over a year or more, but the car was extensively road tested after the repair, the fault codes no longer recur, and the engine seems to be performing great.
 
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