Desperately need helps:(

[p310b]

Car is A4 B7 2.0tfsi with BGB engine

If any of you guys found this related and had succeed fixing it please le me know. Car has been on my garage for 3 years. Brought to Audi dealership and they gave up:(

Symptoms are loud ticking on n80,
Car wont idle, dead after about 30-40s.
Black spark plugs.
Not drivable with g247 plugged.
(With g247 plugged i cant go above 3000RPM)


3 Faults Found:

001618 - Sensor Reference Voltage B
P0652 - 002 - Too Low - MIL ON
Freeze Frame:
Fault Status: 11100010
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 110837 km
Time Indication: 0

Freeze Frame:
RPM: 881 /min
Load: 19.2 %
Speed: 0.0 km/h
Temperature: -40.0∞C
Temperature: 25.0∞C
Absolute Pres.: 900.0 mbar
Voltage: 13.335 V

000835 - Camshaft Position Sensor (G40)
P0343 - 001 - Signal too High - MIL ON
Freeze Frame:
Fault Status: 11100001
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 110837 km
Time Indication: 0

Freeze Frame:
RPM: 1158 /min
Load: 25.9 %
Speed: 0.0 km/h
Temperature: -40.0∞C
Temperature: 25.0∞C
Absolute Pres.: 900.0 mbar
Voltage: 12.700 V

008487 - Accelerator Position Sensor 2 (G185)
P2127 - 002 - Signal too Low - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 110837 km
Time Indication: 0

Freeze Frame:
RPM: 1015 /min
Load: 38.4 %
Speed: 0.0 km/h
Temperature: -40.0∞C
Temperature: 25.0∞C
Absolute Pres.: 900.0 mbar
Voltage: 13.462 V


What I've done so far
-replacing all the sensor related to the code
I replaced my g247 twice as I will only get g247 code if I unplug g247.
-replaced g31
-replaced n80
-replaced fuel filter
-replaced hpfp
-replaced new ECM (still the same errors)
-replaced the whole engine harness
-replaced g31
-timing is not missing, checked


Please don't mind the temp, I forgot to plugged back my CTS before scanning, It was the same code before I replaced lots of those above.

Any help would be appreciate it, really miss my baby.

[p310b]

Seen lots of post with almost same problem, but never seen a solution, or thread starter found the problem and dont update with solution.


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[Mountain wagon]

A faulty ecm, or loose ground is about all that I can think of that would give you all those symptoms at once. Of course aside from what you’ve already replaced.


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