Greetings!

New here and not my native language so bear with me.

Ive been strugling with some weird issues recently with my 2.4l CL9 accord.

First issue were Check Engine + VSA + ABS lights came up and ECU went to "limb" mode. These lights went of after fev restarts and everything worked fine execpt my idle is now hoovering over 1500 all the time.

Things ive done now:
PCV valve replacement -> Made nothing
Compression test -> every sylinder at 165-175psi
Idle relearn -> now idle is at 850rpm and it jumps sometimes around 1200 but settlest back down to 850 wich i think might be normal but never saw it doing that small jump after letting go of gas pedal.

I noticed that i had pretty big pressure on valvecover when i removed oil cap while car was running but it went into vacuum after i blocked it tightly with my hand so i gues thats fine since the compressions were fine too?
By high pressure i mean that the oil splatters spilled out from it when you hold your hand on top of it on the air wich i have never seen before on other cars. :O

Any advice why would those ligths pop up like that and my rpm were way off before relearning it? Ive done nothing that should cause that issue and my oils were fine (lilbit black but still within normal)

Thankyou for any advice to point me at right direction

EDIT:
Bonus content: I had month ago VSA and ABS ligt coming up and after obd reset + learning vsa again those went of and have been working fine. Dont know if it might be somthing related to this or not so better write it down too i gues.