Engine light on for Fuel Trim Bank 1 and 2

Have been having decreased performance since a friend ran a tank of 87 or two while borrowing it.
I used STP fuel system cleaner 5 oz with Shell v power nitro full tank and problems of decreased power and engine skipping and jumping transmission went away.
Added Chevron 91 supreme and issues all came back.
Engine light came on.
Added a thing of Techron fuel system cleaner today and some 91 Chevron.
Still feels like fuel intake not clean.
Only added 4 gallons on top and had 3.5 fresh ones under.
Will likely go down the hill I live on and add some shell v power nitro 3-5 gallons later today.
Before when engine light came on it felt like after running with system cleaner the plain 91 with Techron was to dirty or something.
Now with slightly over half tank and full of Chevron it feels like too much cleaner.
This based on the way the car was expressing the problems.
With no cleaner it was very grindy feeling and jumpy.
Post cleaner it feels like it’s lagging but not as much jolting.