Hi Guys , getting a p2bab fault nox exceedence incorrect egr flow on my mother's Ssangyong tivoli 1.6 xdi car still drives ok with an occasional missfire. It's a 2018 there's no dpf or add blue system on the car. So far I have removed egr valve and cleaned it also checked it was opening and closing via bi directional control on my scan tool this hasn't resolved the issue. Should add that it was serviced in the last few months so air filters ect are clean no obvious splits in pipes ect. Not sure where to look from here any help would be appreciated. Thanks
