Engine Hesitation after short storage

[kokgo20]

Car wasn’t driven for a couple of months battery died and charged a few times, started up, runs fine, then down the street it felt like it’s miss firing on a light load but zero codes, after a few minutes it’s fine of lower gear but high gear and low load engine is sputtering but it’s fine with normal cruising load, drop it a couple of gears and it feels fine. It seems to be using a crap load of gas, quarter tank in a 15~20 min drive on the highway. Threw in a bottle of fuel treatment/ stabilizer ( maybe 10% better).
fuel filter and regulator is 1.5 years old
25k miles since the injectors were sent to get serviced.
30k on a new fuel pump.
30k on new plugs and coils.

any ideas what else I should look for?
FYI, engine is boosted with active Autowerke kit

[Lukem3]

I would drain all fuel and stabilizer, and start with a clean tank of gas. Adaptions may need to be reset

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[kokgo20]

I would drain all fuel and stabilizer, and start with a clean tank of gas. Adaptions may need to be reset

Sent from my SM-G996U1 using Tapatalk

Ugggghhh, that’s almost 3/4 of a tank to drain

[kokgo20]

Update:
1 dead spark plug.
don’t the plugs usually throw a code or not?

[Slideways]

You would get a misfire code if it is registered enough times.

[Jimbo's M]

Ugggghhh, that’s almost 3/4 of a tank to drain

Crap. That's damn near a mortgage payment now.

[kokgo20]

You would get a misfire code if it is registered enough times.

Nothing
zero Codes, I limped Home for 10~15 minutes and still zero codes

[sapote]

Nothing
zero Codes, I limped Home for 10~15 minutes and still zero codes

So how did you know it was a bad plug?

[kokgo20]

So how did you know it was a bad plug?

I decided to check the coils since it felt like a miss fire, as I unplugged cylinder 6 nothing changed but the rest of cylinders made it worse, swapped coils with 1&6, 6 still dead, swapped plugs 1&6, 1 is dead, swapped the plug with an old one and bam we are back in business.