Can I put a 1993 3000gt VR4 engine into my 1992 3000gt VR4?

Yes you can. If both have same style cam and crank sensors then just drop it in and crank it up. Plug and play. Now if your 1992 has the two in one cam and crank position sensor in the back bank head and the 1993 has the two separate sensors on the timing belt let me know. I can explain how to wire the new sensors into the older harness so that you don't have to change computers. Very easy fix.

I have a 94 3000gt sl. I bought another motor for it,the guy swore it was a 96. But it has the two in one cam/crank sensor,so I'm thinking it is a 92. If there's any way I would like to know how to wire up the two in one to my 94 that is wired for the two sensors.

Yes there is. I will try and post you a link.

http://www.stealth316.com/2-cas_conversion.htm -- check this out. It worked on my 91 3000 gt when I put a 94 engine in it.