Here is the link, you can download the entire fsm for the s13 ca18det and on the last pages it got the entire engine diagram
http://ffdet.com/members/rich/...T.zip
ecu #, 78,79, 98, 99 these are the ones that I have worked with and they all work. regarding the ecu plug, you can use your ka ecu plug,z32, nx2000, sentra SER. (The plug will plug into the ecu but that doesn't mean the wirings are the same, you have to do the wiring to match the wiring on the ca18det engine diagram)
The pulsar plugs won't work as they are completely different.
I hope that answered our question.
PULSAR GTRRafi