Camshaft Position Sensor
 

Well, my CEL came on today, so I ran by the parts store to have them read it. It came back P0341 Camshaft Position Sensor Implausible Signal. While I was home for Christmas, I did an auto scan with the Rosstech cable I lent my brother, and got a couple other codes as well, P1947 Relay For Aux Coolant Pump Open Circuit and P0341 again(unconfirmed).

I'm waiting for my cable to get shipped back to me to check for other codes. Sensor's going, my guess. Anyone else have their's go out or get the same codes?

I had the same situation about a 1.5 wks ago. My factory warranty was set to expire about 3 days later, so I took it in. Got new sensors and software update to ECM. Was hoping it'd address the jerky transmission at low speeds but no avail. :-(

Well, here's the VCDS results, three separate faults, not necessarily related, but here they are:
Address 01: Engine (------CDRA) Labels: None
Part No SW: 4H0 907 560 C HW: 4H0 907 560
Component: 4.2l V8/4V H07 0004
Revision: N5H07---
Coding: 0106000A290F0268
Shop #: WSC 09101 444 105119
ASAM Dataset: EV_ECM42FSI0114H0907560C 001005
ROD: EV_ECM42FSI0114H0907560C.rod
VCID: 2A5B3E0F4DD8D26E0F-807E

2 Faults Found:
4661 - Relay for Aux Coolant Pump (J496)
P1927 00 [040] - Open Circuit
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 3
Mileage: 106275 km
Date: 2015.12.18
Time: 12:12:20

4113 - Camshaft Position Sensor (G40)
P0341 00 [040] - Implausible Signal
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 4
Mileage: 107876 km
Date: 2015.12.30
Time: 11:45:11

Address 34: Level Control (J197) Labels: 4G0-907-553.clb
Part No SW: 4H0 907 553 C HW: 4H0 907 553
Component: LUFE-DAEMPFER H17 0096
Coding: 008002
Shop #: WSC 02311 785 00200
ASAM Dataset: EV_AirSuspe 003022
ROD: EV_AirSuspe_AU64.rod
VCID: 2C573817472CCC5EFD-8078

1 Fault Found:
403200 - Function Shut-Off Active
C10C8 00 [008] - -
Intermittent - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 6
Fault Frequency: 2
Reset counter: 83
Mileage: 106322 km
Date: 2015.12.18
Time: 20:15:03

Anybody have any thoughts?

Ah, I should have picked up on it when you said 'sensors', Capt, but I have a new question. Can I tell which sensor it is with the malfunction? Turns out, there are 4 sensors total, at $44 each.

Good question, I never really dug into it that far as my factory warranty took care of it. I just know it required new camshaft sensor (didn't realize there are more than one), and a software update.

I was told it was about $1k worth of work though.

I can't help to think it's odd that more than one sensor going at any given time, have you checked the coolant valves for leaking coolant?

Ironic - I just had mine in for the same thing. I wonder if there was a production run issue on the sensor (or else why would they proactively change the other one). They were both intake cams, in this case.

I have the jerky trans issue, too - but only at very low speed when very cold.

I also needed the valve for the heater core replaced.

All under CPO warranty (thankfully).

Hi, just purchased a 2011 A8 with the 4.2L CDRA engine. Car is running just fine, no suspicious sounds from the motor hot or cold etc.

However these codes found from the engine module sound a bit alarming:
4113 - Camshaft Position Sensor (G40): Implausible Signal
P0341 00 [032] - Upper Limit Exceeded

8626 - Camshaft Position Sensor (G163): Implausible Signal
P0346 00 [032] - Lower Limit Exceeded

If cleared, both reappear in around 1 week of driving. What do you think about the issue?

The ECM is in version 0004, and according to some Russian sites engine ECU update to version 0006 could fix the problem.

I'd change them. Mine lead to (I think) failure of one of my cats. I'm guessing an inconsistent signal caused rich conditions. The dealer said no, but they also said that when a blown coil lead to a failed cat - for the same reason :)

I decided to try first ECU updating with the dealer, but they refused to update without a SVM code. And of course charged 95 euros anyway.

Update: Actually dealer called me today and apologised, they somehow managed to find a SW update for the ECU with version 0007. I will go back there next week.

This block is from my engine, which shows the version 0004:
Address 01: Engine (------CDRA) Labels: None
Part No SW: 4H0 907 560 HW: 4H0 907 560
Component: 4.2l V8/4V H07 0004
Revision: N5H07---

However with some googling I found multiple hits with versions 0005 and 0006:
Address 01: Engine (------CDRA) Labels:* None
Part No SW: 4H0 907 560 C HW: 4H0 907 560
Component: 4.2l V8/4V H08 0005
Revision: N5H08---

Adresse 01: Motorelektronik (------CDRA) Labeldatei:* Keine
Teilenummer SW: 4H0 907 560 HW: 4H0 907 560
Bauteil: 4.2l V8/4V H05 0006
Revision: N5H05---