P CODES (POWERTRAIN) P0600 - P0699 P0674 Questions

My 97 Z24 Has Been Acting Up For The Last Week. It Stalls When Shifting And Does It Whenever. Today It Stalled A Lot And Also Didn't Idle...

My Excursion Has 195184 Miles On A 7.3l Td Powerstroke. I Have Two Dtc (codes) That I Would Like To Try To Pinpoint And Repair If I Can. The...