Is this wire under the car or in the engine compartment sorry but I dont quite understand...maybe a blown out picture of the car and where the part is will help me.

Under car, passenger side, back of the engine. Jack up the car, put jack stands under, slide under the car. You will see the drain plug on the oil pan. As you lay there look to the right and a bit behind. You will see the oil filter. Now look just above that, and you will see the sensor.