Engine Performance problem
2004 Volkswagen Touareg 6 cyl All Wheel Drive Automatic 77000 miles

I have an 04 touareg v6 The low oil pressure warning comes on at 1500 rmp's when the oil temps reaches 200?

Any Clues? I have changed the oil 3x and it still happens,,,,

I also have several fault codes on an odb2 pointing to a air intake leak, but i can not find it.

Also what is the normal oil temp? And what is a normal water temp?

Thank You