hi iam trying to help my stepson with his sr20det swap into his 1984 200sx witch came with a ca18et im looking for the ecu and fuel pump relays can someone please help TX MARK AND SONS

ecu relay is by the air box, in a little black box thing. i think i know it is on mk2's. i assume its the same on mk1's. but for wiring it up.. id
use this KA swap guide....

http://www.club-s12.org/forums/index.php?showtopic=25320


sr20 is bascically same thing as a KA/CA. wire colours should be nearly identical as well... from the brown and grey plugs on the sr harness. you could also look at a s13 sr20 swap guide and insert wire colour/functions into that KA diagram but if i remember right from the last sr i put into a s13, the coulours were the same, then connect those wires into your s12 harness. easy easy


that swap guide also has the options on how to hook up your fuel pump wiring.

efi relay is light green in color.

84s do not have a fuel pump relay, the old ca18/20 ecu drove the fuel pump directly!

toss up some pics of what you've got going on in the garage section!

just as soon as i get back there the car is 350 miles away