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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKVI-A6 Golf family including Jetta SportWagen (~ 2010-2014)

VW MKVI-A6 Golf family including Jetta SportWagen (~ 2010-2014) Discussions area for A6/MkVI (2010-2014) Golf and Golf Wagons (Jetta Sportwagon in the USA).

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Old January 15th, 2019, 19:03   #1
PRY4SNO
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Join Date: May 2016
Location: Edmonton, AB
Fuel Economy: Impressive
Default New day, new codes. Underboost and MAP by the looks of things...

Driving home today (steady, on cruise control) and out of nowhere lost power, with the Workshop light on with the GP light flashing. Thought it was odd, so used my OBDeleven to check codes:

P20D8 - Exhaust aftertreatment fuel supply control
P0299 - Turbocharger underboost (upper limit exceeded)

Then, after I cycled the ignition a MIL came up with a new code:

P1592 - Altitude sensor signal/charge air pressure sensor (implausible ratio)

Limped home since I was only a few kms away. Checked the N75 vac tubing by eye and hand, no obvious splits that I can see, but the engine wasn't running by then. Ran a log of the engine controller with my VCDS and I'll post that in a quote below.

What measuring blocks, if any, should I log before I take in the car for warranty service?

Other relevant thoughts, links?

Thanks!


Quote:
Address 01: Engine Labels: 03L-906-022-CBE.clb
Control Module Part Number: 03L 997 030 L HW: 03L 906 022 TS
Component and/or Version: R4 2.0l TDI G001SG 9983
Software Coding: 0350072
Work Shop Code: WSC 03421 003 1048576
VCID: 377DFF8F462340F224-8062
4 Faults Found:

008408 - Exhaust Re-Treatment Post-Injection
P20D8 - 000 - Control Limit Reached - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 291111 km
Time Indication: 0
Date: 2031.14.30
Time: 17:42:55

Freeze Frame:
RPM: 1932 /min
Speed: 115.0 km/h
Torque: 105.0 Nm
(no units): 1.00
(no units): 1.01
Temperature: 354.0C
Load: 20.0 %

000665 - Boost Pressure Regulation
P0299 - 000 - Control Range Not Reached
Freeze Frame:
Fault Status: 01100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 291501 km
Time Indication: 0
Date: 2031.14.31
Time: 18:08:40

Freeze Frame:
RPM: 2139 /min
Speed: 83.0 km/h
Load: 59.6 %
Pressure: 2178.0 mbar
Pressure: 1331.0 mbar
Lambda: 89.2 %
Lambda: 88.4 %

000665 - Boost Pressure Regulation
P0299 - 001 - Control Range Not Reached
Freeze Frame:
Fault Status: 01100001
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 291501 km
Time Indication: 0
Date: 2031.14.31
Time: 18:08:40

Freeze Frame:
RPM: 2139 /min
Speed: 83.0 km/h
Load: 59.6 %
Pressure: 2178.0 mbar
Pressure: 1331.0 mbar
Lambda: 89.2 %
Lambda: 88.4 %

005522 - Altitude Sensor / Boost Pressure Sensor
P1592 - 000 - Implausible Correlation - MIL ON
Freeze Frame:
Fault Status: 11100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 291505 km
Time Indication: 0
Date: 2031.14.31
Time: 18:11:36

Freeze Frame:
RPM: 0 /min
Speed: 0.0 km/h
Voltage: 13.00 V
Pressure: 931.7 mbar
Pressure: 1331.0 mbar
Temperature: -15.3C
(no units): 5.0
__________________
- 2010 GSW 6 speed TDI (296k km & counting): #farmenwagen

- 1992 Audi 80q 20v: the 20vt winter sled (long term project)
- 1990 Audi Cq 20v: #becauseracecar
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Old January 16th, 2019, 11:23   #2
PRY4SNO
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Default

Car is at the stealer, luckily they had a cancellation on a loaner so I was able to get in first thing this morning.

Codes were stored but the GP light wasn't on this morning, so the morning commute wasn't as nerve wracking as it could have been. Felt down on power, but I wasn't exactly pushing my luck either.

On a positive note, the new GSW with DSG, TSI and 4Motion is a nice rig (so far). Curious to see how the mileage compares. The only thing that holds me back from a mk7 is no awd and TDI and manual trans in the same car.
__________________
- 2010 GSW 6 speed TDI (296k km & counting): #farmenwagen

- 1992 Audi 80q 20v: the 20vt winter sled (long term project)
- 1990 Audi Cq 20v: #becauseracecar
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Old January 16th, 2019, 16:12   #3
PRY4SNO
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UPDATE:

-- TSB 21-18-02 applied due to frozen intercooler
-- TSB 21-15-06 applied due to P20D8 & P0299

No cost, thankfully, and they were finished in about six hours or so.

Unfortunately the service agent didn't mention the second TSB (just the frozen IC) or what it corresponds to... does anyone have access to TSBs? I searched a few different ways and came up empty handed.
__________________
- 2010 GSW 6 speed TDI (296k km & counting): #farmenwagen

- 1992 Audi 80q 20v: the 20vt winter sled (long term project)
- 1990 Audi Cq 20v: #becauseracecar

Last edited by PRY4SNO; January 16th, 2019 at 18:32. Reason: service agent, not writer
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