j4s0n1337

I'm putting a jdm b18b in my eg hatch and i'm not 100% sure how or where the harness is supposed to go. I have the right harness for the b18b but i want to make sure it's in there right so i don't mess anything up when i drop the motor in. Pictures, diagrams, or links to diagrams would be MUCH appreciated.

HondaPartsHero

Are trying to use the JFK b18b harness? It's made for right hand drive so the shock tower harnesses are on opposite sides. Reuse your stock harness as long as the engine is OBD1 and your model is DX/EX/SI itll be plug and play otherwise youll have to convert a few plugs over. Or u can use a 92-95 LS integra harness.

94EG8

Lol, other things on your mind?

'94 - '95 will work, '92 - '93 is OBD1 but the harness is physically different. Is the B18B OBD1 or OBD2? If its OBD2 get a '96 - '01 Integra harness.

j4s0n1337

I know it's a ls harness but i'm not sure what year. I have everything hooked up right on the motor but there are still some extra wire clips that i'm getting paranoid about D=

j4s0n1337

I'm like, 95% sure it's obd1, but how would one be able to tell the difference?

94EG8

OBD1 will have 2 grey plugs for the distributor, OBD2 will have a single large grey plug.

j4s0n1337

Okay, so it's OBD1. but do you know anything about the extra plugs? There's a couple plugs with the same clips and I'm not sure where they're all supposed to go. I can post pics if that'll help, or if there's an article about wiring up a b18, i couldn't find one =/

j4s0n1337

I know the one on the right is the ground wire, but that's one of them


Two plugs hanging by the tranny, not sure where they go either


White plug by the alternator, still can't find out where this goes

If anyone knows where or what these plugs are plz help!

HondaPartsHero

Ha, iPhone autocorrect fail

HondaPartsHero

Fanswitch on thermostat housing





Left is reverse light switch



right looks like one wire O2 connector but the LS integra has a 4 wire





Looks like intake air temperature sensor which is on the front of the LS engine (pictured on 4th intake runner, black connector)

j4s0n1337

Sweet, i'll look at it some more and let you know if anything else pops up. Thanks for the info!

j4s0n1337

I got them all except for the white plug. My intake has a map sensor and two other plugs on the very back of it, i don't have one by the 4th intake runner. It's the last thing i gotta do on the swap and I'm so paranoid D=

94EG8

if you don't have an IAT sensor in the manfold you'll have to add it to the intake arm. Generally its easiest to use a '96 -'00 Civic IAT sensor and plug when doing this.

j4s0n1337

Thanks man, I'll hit the junk yard up tomorrow and let you guys know how it goes.

j4s0n1337

Any place specific on the arm I should add it? I just want to do it right the first time y'know?

94EG8

Generally right at the bend, somewhere fairly close to the throttlebody.

Justin perez

On the thermostat ground it’s the wires 1 Orange1 black on both sides??

JRCivic1

One brown and one black wire on each... yes.

Justin perez

Okay so I have the same set up as you obd1 harness b18 eg hatch but the harness I got with the car is so mess up that I don’t have the ground terminal just wires and I’m not sure how the wires are supposed to go

JRCivic1

Connect them all to the bolt on the thermostat housing... there is no particular order.