I see there is a historic issue with XFs shutting down on the freeway, and it usually comes down to the RCM or Crank Position Sensor. Sometimes the intercooler pump. My car has been breaking down on the freeway every day, but if I park and turn it off and on it works fine again no problem. What is the most likely part that has failed? I am strapped for cash so I would like to tackle the most likely culprit first.