http://www.club-s12.org/board/attachment.p...ttachmentid=428
http://www.srswap.com/faq/index.asp#harness
91-94 240sx fsm and 95-98 240sx fsm
http://www.zeroyon.com/index/content/view/24/47/
this site has a ca20e wiring diagram but you have to register to view it.
http://www.antrx.com/tech/
s13 and s14 ecu pin outs. both ka24e,de, and sr20de,det
http://www.az240sx.org/tech/Pinout/

it looks like the interior plugs would be 110, 111, and 113. 110 would be black and the 111 , 113 would be white. they hand down just above where the ecu bolts up.
the amount or wires on the gray s12 plug in the engine bay is the same amount as the ka plug posted above.
the plugs under the dash have between 3 and 8 wired.
