OK, so I just pulled an LS swap out of a 99 Integra with an automatic transmission. I was planning to put it into my 92 Civic VX. Here are my questions:

1. Can I use the automatic wiring harness or do I have to get a manual one?
2. Can I use the OBD2 harness since everything else is OBD2 on the engine. Will it plug into the OBD1 firewall plugs?

Thanks for your time guys.

 

bump

 

PLEASE SOMEONE ANSWER ME!!!!!!!!!!!!!!!!!!!!!! lol

 

BUMP!!!!!!!!!!!!!!!!!

 

The auto vs manual doesn't matter, you'll just have the extra plugs for the automatic stuff.

The engine harness will plug in, but you have to do a little wiring. Since the VX has a 5-wire O2 sensor, you have to rewire it to use a 4-wire O2 sensor (that most other ECUs look for). https://honda-tech.com/forums/hybrid-engine-swaps-18/complete-obd1-b18c1-into-civic-vx-wiring-instructions-644434/

Also you may need an ECU conversion harness, depending on what ECU you plan on using. Your best bet would be to get a '94-'95 P75, or a '92-'93 P75 will also work. You could also use a '92-'95 Civic ECU, if you get it chipped with the P75 base map. Anything newer than those years, and you're going to have to use a conversion harness.

 

Aight thanks man, and I had forgotten about the O2 sensor. And as for the ECU I had known about getting an OBDI P75. Thanks a lot for the help man.