bad Fuel Pressure regulator cause bad idle/stalling?
 

Does bad fuel pressure regulator cause the car to idle roughly and even cause the car to stall? Or is it something else like contaminated fuel? And fuel filter needs to be changed?

Re: bad Fuel Pressure regulator cause bad idle/stalling?
 

Could be lots of things. I'd replace the fuel filters first because that's the cheapest. Then start checkin some other ----.