its the sensor that screws in the front to the left of the dizzy. i live off coral ridge and sample, we heard it right over our house and went outside.did not know what it was till a little bit later. heard so many sirens. it landed in the corprete park like 1 mile away. crazy. my brother tried to drive over there but the pigs were every where. what school did you go to and when?
thats the coolent temp sensor I think you shouldn't have to replace it just be careful when you take it out. The reason why i say that is cause mine broke when i was taking it out