98EGY8

i got a 98 civic ex and im trying to put a motor i bought into it. the motor swap i got is a b18c1 with some work done to it, b16 lsd trans, wire harness, obd1 hondata computer and hasport mounts+axels and tbracket. i pulled the single cam out, put the b18 in, went to wire it up and then i noticed only 2 plugs goin to the jumper harness instead of 3. i needed the car runnin at the time, this was a few weeks ago and i was basically outa cash after i got the swap. so i just put the y8 back in, and ive been researching since. the cars obd2a, the harness is obd2b but has obd1 injector plugs and some other plugs are diff. i have an extra obd2a harness for y8 that i have hooked up to the motor, its got type r oil pump so no sensor there, the 4 injector plugs are obd1 and the purge solenoid is confusing me. the b18 has a type r rep IM and there's an extra sensor on the 2nd intake. i will get pics up tomorrow but i basically wanna know what i need to get this working. i know i need obd2a to obd1 jumper cause the one i have is obd2b to obd1, and ill have to wire the injectors into the harness and swap some other sensors once i figure out which ones and im not sure on the distributor, once i get pics up it will be easier for me to explain. this is my second engine swap im undertaking so im fairly new to this.

harness that came with swap



engine, intake and distribs. i have obd2a harness mocked up to the engine








ecu

doctorake

This should help some.

https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/92-00-honda-engine-swap-wiring-guide-vtec-non-vtec-2987229/

98EGY8

just got home ill read that and get some pics up

98EGY8

i think i just need 4 injector obd1->2 jumpers, obd2A->obd1 ecu jumper, the one that came with the swap is obd2b->obd1. not sure if i delete the purge solenoid and the EVAP or take the selenoid off my y8 and wire it in. from what ive read i could do either and it shouldnt make a diff, im not worried about passing emission either. im not sure what the obd1 ecu looks for in terms of the evap system so even if i wire it in it might not work? also im pretyy sure the sensor on the 2nd intake arm is the IAT, the same sensor that goes into the cold air intake on the y8. if thats the case then i just gotta order my parts , wire a few sensors and im good to go

hybridmiklo

the obd1 ecu does not look for the evap system. I just commands them and thats it.

98EGY8

alright, the wire for the purge solenoid on the y8 manifold on the obd2b harness that came with the swap is spliced with a green plug that fits the IAT on the 2nd intake arm on the R manifold. but the harness also has the plug for the regular IAT that would go into a cold air intake. its got hondata s300, does in need both sensors or one or a certain one or am i wrong? if it only needs one i can just use my cold air intake off my y8, reuse the sensor and just leave the other one?