2003 V70 Stalls when slowing down or braking Topic is solved

[MadeInJapan]

My friend's V70...He went through a fuel pressure regulator and cleaning his MAF a few times, also changed his fuel filter and cleaned his ETM, if I recall. At about 140K miles, his car was bought used and not knowing the service history...He reset all the codes he got and it was still stalling. Finally another friend who runs a Volvo repair shop locally figured out it was his PCV system that needed replacing. Just posting this if anyone else has similar issues. There was no indications of leaks but I don't know if he ever did a glove/vacuum test before taking it in.