A4 3.0 V6 engine misfiring - codes

[A4B6Cab]

Anyone shed any light on these please?

Address 01: Engine Labels: 06C-909-559-ASN.lbl
Part No SW: 8E0 909 559 M HW: 8E0 909 059
Component: 3.0L V6/5V 0010
Coding: 0011514
Shop #: WSC 00672 785 00200
VCID: 3F893B561715
5 Faults Found:
17548 - Oxygen (Lambda) Sensor; B2 S2: Internal Resistance too High
P1140 - 008 - Implausible Signal - Intermittent
17522 - Oxygen (Lambda) Sensor; B1 S2: Internal Resistance too High
P1114 - 008 - Implausible Signal - Intermittent
16684 - Random/Multiple Cylinder Misfire Detected
P0300 - 001 - Upper Limit Exceeded
16686 - Cylinder 2: Misfire Detected
P0302 - 001 - Upper Limit Exceeded
16690 - Cylinder 6: Misfire Detected
P0306 - 001 - Upper Limit Exceeded
Readiness: 0000 0000

Cheers in advance guys

[Crasher]

That could be coil packs 2 and 6 but I have had this on these engines when the cam timing adjuster valves fail.

[A4B6Cab]

Cheers Crasher, I'm guessing 2 coil packs going would be beter than cam timing adjuster valves failing?

Is there an easy way of checking the coil packs? And which ones are cylinders 2 and 6 (probably very stupid question but apologies)

Also, if it is the cam timing adjusted valves going, what sort of job/cost will this be?

Thanks again mate

[Crasher]

Yes but the cam timing adjuster valves are easy to change if VAG UK have any stock. They are around £80 each and are bolted in through the cam covers, quite an easy job to do.

[A4B6Cab]

Cheers again Crasher, is there an easy way of seeing if its the coil packs, or the cam timing adjusters?

[Crasher]

Not an easy one, it is down to experience and lots of time studying measuring blocks.