Thats on my mind too because i used to play alot with those on older volvos with magneti marelli flaps but as i remember when i changed engine etm looked fine to my eyes, no dirt etc. Peehaps i have to look it

Oks i dont know where to start. I got this car few months ago, i bought it broken. Dont remember correct dtc codes but the were misfire cylinder 4,5 and 6. And 1 more missfire code what i think meant misfire on every cylinder. Now i have worked on engine and almost everything is changed. First i out...