I have a broken sensor going into the engine block. It is locate under the fuel rail in the middle of the motor and can be seen in the enclosed picture. Could anyone tell me what the sensor is so I can replace it.

 

I believe that is your intake temp sensor. Some of the replacements are all plastic, some metal and plastic. I put a new one in a while ago when I had my fuel rails and upper manifold off 'while I was in there'. It was an all plastic one, it works fine.