My my van won't start

What is your question?

Can someone please tell me why my van stopped running and will not start back? What happened is I was driving down interstate and van started making a loud winding noise like the power steering needed fluid and then it died had to be towed! I put it on the tester and it read 4 different codes that had to do with the throttle position sensor said it is got a high voltage reading and the other about the egr valve had high reading also could one of these or both be my problem from getting van to start?