Hi guys,
First posts around here. I just had a Quantum stage 1 remap done and also the timing belt serviced, oil and filters changed as well. One day after having everything done I hit a major pothole (steel rim got seriously bent) and a few hours after, the car started going into limp mode when driven hard (WOT in 4th gear at about 3k) and throwing DTC P0234. Turn the ignition off, restart it and everything is fine. Try to drive it hard again and, given a few minutes, it goes back into limp mode.
One things that pops up from the logs is that there is quite a difference between desired boost and actual boost.
These are the DTCs of the engine module:
Saturday,07,February,2015,22:06:08:10074
VCDS Version: Beta 11.2.0
Data version: 20110305
Address 01: Engine Labels: 06F-907-115-AXX.lbl
Control Module Part Number: 1K0 907 115 Q HW: 8P0 907 115 B
Component and/or Version: 2.0l R4/4V TFSI 0020
Software Coding: 040300031C070160
Work Shop Code: WSC 08708 803 00000
VCID: 346318E32CFB
3 Faults Found:
000256 - Mass Air Flow Sensor (G70): Supply Voltage
P0100 - 004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 9
Mileage: 101448 km
Time Indication: 0
Date: 2000.00.00
Time: 19:58:33
Freeze Frame:
RPM: 4866 /min
Load: 75.3 %
Speed: 66.0 km/h
Temperature: 94.0°C
Temperature: 11.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.224 V
001089 - EVAP Emission Control Sys: Incorrect Flow
P0441 - 002 - Lower Limit Exceeded - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100010
Fault Priority: 2
Fault Frequency: 4
Mileage: 101457 km
Time Indication: 0
Date: 2000.00.00
Time: 20:16:07
Freeze Frame:
RPM: 843 /min
Load: 14.1 %
Speed: 0.0 km/h
Temperature: 96.0°C
Temperature: 20.0°C
Absolute Pres.: 1000.0 mbar
Voltage: 14.097 V
000564 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition)
P0234 - 001 - Upper Limit Exceeded
Freeze Frame:
Fault Status: 01100001
Fault Priority: 2
Fault Frequency: 3
Mileage: 101522 km
Time Indication: 0
Date: 2000.00.00
Time: 20:38:06
Freeze Frame:
RPM: 3494 /min
Load: 69.8 %
Speed: 94.0 km/h
Temperature: 96.0°C
Temperature: 6.0°C
Absolute Pres.: 1010.0 mbar
Voltage: 14.224 V
Readiness: 0000 0000
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Address 01: DTCs cleared
You can safely ignore the MAF one, it's from disconnecting the sensor in the garage for a test.
I've added some logs made with VCDS:
https://drive.google.com/folderview?id=0B7MXqEtoH8k4fl9PY0s2UTFrNlV5MllFV3JXT1Q5VjlybWtrOWRyQzlTSzRlX1lWaFRYVkE&usp=sharingCheers,
Alex