Yes. Without overreading the plugs, the one on cylinder 2 looks ok, the other two look like past their prime (see the white-ish little spots growing on the porcelain and/or electrodes). I’d start by installing 10 brand new, good quality plugs as bad plugs overstress the whole system. It is also quite cheap.
Good news is that you’re not running rich nor poor !
Swapped plugs and coils for cyl 2 & 7—but the misfires stayed with 7. What does that say, check the injectors? Should I change plugs and coil packs regardless?
On what cylinders do you have new injectors?
And are the new injectors with stainless filters or plastics?
I replaced 4 injectors before I realized that the only problem with the original ones were the plastic filters causing misfires as they degrade.
So I now run on original 2006 injectors on 6 of the cylinders with no problems ( I removed what was left of the filters)
Car is nearly at 250.000 km
In Denmark thats just about “break-in” mileage 
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Aren’t you that sick guy who managed to get 500HP from that V10? Haha
From what I can tell is that usually all will go bad in short time apart. So if one is dead it’s better to change all of them.
I’d say he should maybe check compression on bank 2 entirely. Doesn’t take a lot of time.
That might be me, yes. But that’s on the last tune 
JHM’s wizard has been doing his magic again 
For me I just did what I mentioned above.
In general I would also advise to change all injectors, or just the older ones.
Same with PCV etc.
Yeah, especially when it’s the daily/only car
Injectors were last touched in 2016. As I recall 4 were replaced and the other 6 were refurbished with new filters and grommets. But I can’t remember what kind.
Is the PCV the same as the oil separator, or a different part? The oil separator was just replaced. But I still feel like there must be a leak somewhere in the system. Just not sure how to get it checked out. (Language problem, I need French or Dutch)
Bonjour Mixofia.
Je suppose donc que tu es du côté de la Belgique. La pcv est effectivement le séparateur air-huile, boîtier noir repris par deux torx à l’arrière du collecteur d’admission. Si tu veux voir s’il y a une fuite, c’est machine à fumée obligatoire à mon sens.
Hi Mixofia,
I supposed the you’re located in Belgium then.
The pcv is the same as the oil separator, held by two torx screws on the rear side of the intake manifold.
If you’d like to locate any supposed leak, the use of a smoke machine seems necessary.
Oui monsieur, mais je parle seul un peu français.
I have already replaced the oil separator. But I need a smoke test—comment-je parle « smoke test » en français?
« Je veut voir s’il y a une fuite du vacuum. Est-ce que vous pouvez ça faire avec une machine à fumée? »
[UPDATE] I found a vacuum leak(!) In the end, I couldn’t find a garage to do a smoke test, so I made a DIY smoke machine, and voila!
See this post for more details: What are the 2 hoses that connect to the pass air intake hose?
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Check the PCV system. The vac hose that goes from one bank to the other. I chased the same issue for a while. It’s the thick plastic with braided mesh around it. $200 dealer part but it smoothed everything out. Pull that hose and look for cracks.
Make a DIY smoke machine, it’s gonna save you a lot of time guessing at where the leak is. see: What are the 2 hoses that connect to the pass air intake hose?
Update: after 3 months of no significant misfires or CELs the #6 problem came back. Plugged in Vag com and was following the O2 levels indicating I’m running a bit rich on Bank 3.
Any ideas what It could be? Again mostly on coldstarts sometimes on red light stops but very sporadic. Injectors are all new.
Could you post your fuel trims from group 032 for both ECUs? Maybe they’ll reveal something
I have one for block 033 which said negative 12-17%. But LTFT are around 3-5% sometimes 7%
In that case I would clear them, and wait until car adapts with new ones, and see what they’ll turn out to be
Uploading: 20220403_093602.jpg…
Tried it, even resetted the entire ECU didn’t change much still only #6 very randomly
Been chasing that issue for 2 years now and I’ve started to build a brand new engine already because I got sick of it