The Oil Pressure sender is located just above the oil filter.Standing in front of the car,if you look in the middle between the power steering pump and water pump you will see it hidden close to the engine block and timing chain cover.It has 1 wire capped on top.The wire has a red stripe to it and the sensor plug is a black rubber piece bent in a 90 degree position.If you have any plans to remove or replace it,the only feasable way to do so is to remove the alternator/power steering pump bracket assembly.This is to make sensor access even possible.
And as for the temperature sensor.There are 2 of them.1 is a sending unit that sends a signal to the temp gauge.The other is a sensor the PCM (computer) reads from.The PCM temp sensor is located just behind and a little to the right of the coil pack.It is mounted just off a coolant line with a grey 2 wire plug attached.The gauge sender is just to the right of the PCM sensor.This one has only 1 wire and is screwed into a tall metal fitting with a round white object on top displaying a notice about the coolant........
Better to get right to the details than ask a dozen questions later.