My wife dis a lot of stop and go drivingshowing houses yesterdayand afterwards the car runs very rough - revs up and down, will not idle properly, runs like crap. Got codes P0234, overboost condition and P2097 post cat. too rich (?) fuel trim (?). Can any one shed some light on what may be going on here? The car is a 2002 V70XC 5 cyl. turbo with about 160000 miles.

Thanks is advance from a newbe.

 

I would clean the throttle body and check for vaccum leaks and go from there.