You didn't say which engine you have. On most of them the oil pressure sending unit is on the back, top, right behind the intake manifold and just to the right of the distributor. It's screwed into the back of the engine block.
You can also look next to the oil filter. That is always on the right side of the engine, near the back. It will be black, about two inches long, and an inch round with two wires in the connector.
Tuesday, October 8th, 2013 AT 9:49 AM