ok so i read all the post and ima make it clear for this poor kid and who ever decides too do OBD1 engines on OBD0 chasis.
1. u need a obd0_obd1 jumper harness. i got mine from jdmcarboy.com 99$ comes with instructions. and a pigtail for ur KS AIB Vtec and Vtec pressure switch.
2. u use the stock mounts all four including driver side block mount cuz we all knw driver side mounts are 2 pieces.
3. you use the stock DA 90-91 harness just like u was puting a stock b18a1 back in. just find some obd1 injector clips or u can even use obd_0 injectors.
ok knw with everything in ur garage/hands. you do this
1. get ur p72 ecu and obd0_obd1 jumperharness with its pigtail of wires, plug the jumper harness too ur chasis harness, plug in the p72 ecu to the jumper run the pig tail too thru the fire wall of engine bay put everything in the passenger side cover up and ur done with the inside. simple!!!
2. Drop ur b18c1 into ur DA chasis. conect the obd0 harness too ur b18c1 engine. cut and splice the obd1 injector clips. if ur using obd0 injectors then ur done with that. Simple!!!
3. run the pig tail to the sensors. wich are KS knock sencor, AIB Air Intake BypassValve, Vtec and Vtec presure switch. for this step u will need the directions that came with the jumper harness it should be easy! and for the Dizzy u can use the obd1 dizzy. wat i did is unpin the Dizzy Clips on my obd0 harness and got some obd1 plugs and pin them so it looks clean. or can buy a jumper for that aswell. or u can use the obd0 dizzy but u gona have too cut on of the legs so it would fit.
4. after ur done with ur engine wiring is done step back and zip ur Corona Extra
lol. feels good dosent it LOL!...
5. after ur break is over. find a gsr throtle body cable cuz ur ls just wont fit! to change it juss twisted from fire wall then go inside and follow the gas peddal up and unhook it and replace it with the gsr TBC.
6. Put oils, fluid. pray ur engine is good double check everything. and crank it up!!!!!! hope this help bro. if u got Questions hit me up ill be more than happy too help u. these same steps can be use for 88-91 civic and CRX
ps. u may have CEL code 20 for electrical over load commen wen doin obd0_obd1 swaps if u run to it. hit me up i got the remedy for it lol.