I have a 94 Civic coupe that originally had a D16Z6 in it. I just dropped in a OBD2 B18C. I am using the original harness from the D series and a OBD1 GSR ECU. I installed a OBD1-OBD2 distributer jumper harness from Password:JDM and the only other things I think I have to change is the alternator (or alternator plug) and the injectors as well as the throttle cable. I am new to the world of B series and was wondering if anyone could tell me if I've done everything right or if there's any other problems I might run into. Will the motor run right? Any info would be really appreciated, thanks.

 

I have converted a few obd2 motors to obd1, isnt too bad, i think you got most of it listed there, but i forget cause its been awhile, if u search the forum u may find the exact parts required.

 

also there are a few differences in sensors i thunk....

 

if u can get one of this would be great cut u some headache....any usdm 1996-2001 integra gsr harness will plug into 92-95 honda civic but yeah u pretty much got done with it....good luck...

 

i'm about to start this project myself in a 99 ex. so far i've gathered, 99 si shift linkage, motor mounts and poly inserts,b series vtec distributor, b series power steering brackets, gsr ps pump, i have the obd1 p72 ecu so i need a obd2 to obd1 harness. and there may be more i'm forgetting. Also, my car is wired for vtec, if yours isnt i heard it makes it much more complicated.

 

yeah, my car was already wired for vtec. The original motor was the D16Z6 and I swapped in a JDM D15B VTEC for a short period. Everything on the obd1 harness plugs/bolts right up to the obd2 motor except for the alternator, the injectors, the throttle cable and i think thats it. Other than doing what I need to get those hooked up, all I need is shift linkage, axles, and depending on if i decide to run power steering or not, everything I need for that.

 

you can use your obd2 altenator just get use your obd2 plug on the obd1 harness!!
obd2 obd1
black/yellow >>> black/yellow
white/blue >>> white/blue
white/green >>> white/yellow
white/red >>> blue

colour match the wires as above and it has a plug with 3 wire just cut the white yellow and leave it..

hope these are usefull to you.did few swaps obd1 to obd2 or vica versa and with no altenator problemsss..

 

right on! thanx bro

 

this can save you alot of trouble trying to find an b-serie obd1 altenator..