What sensors are around the spark plug area? I know that the knock senosr is where the spark plugs are at but I don't think I have one cause the hole where it should be is free unless I'm mistaken about it's location. Other then that what other sensors are in that area?

 

The small water temp sensor that operates the dash gage . The large sensor also under the oil filter is the oil pressure sensor .

 

two rotor housings
each with a knock sensor hole
the rear is empty

-Max