99 Dodge 2500 code P0237 turbo sensor

I've got a engine light that comes and goes you can't read the code unless the truck is running and sometimes it will go away on it's on.Well I finally got my reader on it when it came on the other day and this is the code that came up P0237 super boost turbo sensor A circut low input.the sensor is over $100.00 should I just buy the thing and put it on or try something else 1st?
Thanks in advance Mitch

Well after calling severAL PLACES TO TRY TO FIND THE SENSOR THE DODGE PLACE COULD ORDER IT FOR 128.00 NEXT DAY .SO I THOUGHT I'D GIVE CUMMINS A CALL THEY HAD THE PART AND IT WAS ONLY 49.00 WHAT A MARK -UP ANYWHO PUT IT ON CODES ARE GONE AND NOT BACK