Mesquite77

>>>> bad vibrations on my cockpit and sterling wheel when transmissions is in D or R

This is often the sign of bad engine/transaxle mounts, especially active ones that have lost their fluid or torn.

AdamMak90

Yes, I know, but it started after changed of spark plugs, so I’m looking for reason in electrical/engine side. Also I think the car still have too poor and wavy idling

EDIT:I already know what causes the vibrations- misfires! On cylinder 2,4 and 6, so whole bank 2! This is better side to find the reason of the misfires than bank 1. I changed diagnostic program and Found the misfires.
so what now? How could I check the coils, sparks and what else could causes the misfires?
I excluding the air filter, maf sensor, or intake leak- two first will causing misfires on both engine’s sides, and I already checked intake in case od leaks, maf sensor is cleared, air filter is almost new( 5kkm)

AdamMak90

I have some toutghs after few days- it is possible that dirty VVt solenoid could be the cause of my problemu with poor idling and misfires on bank 2?