hello everyone...my wife has a 2001 s80...today she fell into a pothole, now the car has a rough idle and at times it feels like its going to shut off also the engine light came on after hitting the pothole..i looked under the car no leaks...anyone idea?...thanks

 

Get OBD2 and pull codes.

I am speculating.
- cylinder misfire (maybe one of the connectors dislodged from ignition coil, usually there is a clip that holds it in place, but over time and heat from cylinder head, has made that clip brittle or the socket brittle)
- ETM