where is the oil pressure sending unit on my 93 v6 automatic ive got an oil leak and wanna check that.... ive read my haynes cover to cover and it doesnt say.... anyone know?

on the left side of the distributer.

Haynes manual, Chapter 2 part D, page 5, section 3, illustration 3.4a. They got tricky and didn't put it in the index, but it's in the engine overhaul section.