Jeep Gladiator 2020 with 3.6L Pentastar with start/stop.

Truck is throwing engine misfire code for cylinder 1. when hard acceleration is pressed and after several seconds while pressing hard acceleration like maybe 5-10 seconds of pressing accelerator. the check engine light comes on and engine reduces power and exhaust sounds like misfiring. looks like ECM has  reduced engines performance because there was something wrong when it was trying to accelerate instantly . But after sometime when you keep driving it like 5-10 mins maybe, it resets itself to normal automatically. after restarting vehicle it resets itself to normal. On normal driving its doesn’t give any problem runs smooth as butter.

Services done-

all spark plugs changed

all ignition coils changed

when I was changing spark plugs there was a lot of oil in spark plug well so I cleaned it and changed spark plug seals inside valve cover too.