{HEAD ~ The sensor} is located in {TAIL ~ an engine component opening}, such as a spark plug well, and is engaged with first and second walls that define the ends of the opening 
is located in
{ HEAD ~ The sensor } is located in { TAIL ~ an engine component opening } , such as a spark plug well , and is engaged with first and second walls that define the ends of the opening
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH