Where is the oil pressure switch located?

The oil pressure sensor is on the right front of the engine block down low. Check the images below to show you where it is. Check out the images (below). Please let us know if you need anything else to get the problem fixed.

What do I need to get to it and take it off? does timing cover have to come off?

You need to take the timing cover off, use a flashlight to see if it is next to or near the cover, you will need a special oil pressure sender socket to replace it though.