Try adding some cleaner then
fill her up.

 

Possible this will resolve with some fuel injector cleaner/fuel treatment?

Certainly couldn't hurt. Even just filling the tank halfway and shaking/bouncing on the rear bumper a bunch should help release debris stuck to the pick-up sock and let it settle back to the bottom of the tank....

 

Take out injector 6 and reverse clean it by shooting carb cleaner with a hose attachment to the nozzle spray side and then clean it the normal way many vids on YT that shows how to do it in case you unsure how to approach this

 

Thx all, good enough time to manage plugs/injectors anyway, i've had no complaints with this vehicle.

 

There is no end to the "coincidence stories", where something happens and coincidentally something totally unrelated happens at the same time. (I brought my car to your shop for a leak in the tire, and on the way home the windshield wiper flew off! It's your fault!!) Try swapping spark plugs and fuel injectors with other cylinders and see if the problem stays with cylinder #6 or follows either the plug or injector. Don't swap both to the same "other" cylinder so you can isolate the issue better.

 

There is no end to the "coincidence stories"

Ha, true, know what you mean!

Kept the car running awhile after adding fuel treatment (Heat something brand) and it has mostly resolved. Needed plugs/injectors replaced anyway so i'll do that too- all's good!

As always, thank you to the Community here, much appreciated!