I recently picked up a 2006 XC90 V8 with 96k Miles. Shortly after the purchase, the Check Engine Light appeared and the message, "Slow Down or Shift Up" displayed. I saw another post similar to this back from 2011 and it was diagnosed as a faulty Coil Wire. I scanned the XC and it showed "Cylinder 5,6 Misfire. My thought was coils.

Just curious if anyone else has dealt with this issue in the past and possibly point me in the right direction. Any help with this would be appreciated.