How do you do this? I know you need the OBDI plugs to solder on, but is that it?

 

yup.. just get the obd1 plug and then cut the old plug off.. all the wire colors are the same from obd2 and obd1, just match them up.

 

Thanks!

 

Do you cut off the plug that comes out of the base of the distributor, or the plug on the wiring harness? Which one decides which OBD?

 

You cut off the plug on the distributor side dependent on OBD. Say you have OBD2 wiring harness you use OBD2 distributor plug on OBD1 distributor. Vice versa for OBD2 distributor. HTH.

 

The reason I ask is because I am swapping an OBDII B20Z into an OBDI 93 civic si. I was going to use an OBDI integra LS ECU. If I want to use the OBDII wiring harness, what do I have to do?

Could I just replace the plug on the distributor side with an OBDI distributor plug and use OBDI fuel injectors?

-or-

Do I have to use an OBDI integra LS wiring harness along with an LS intake manifold and injectors?

 

i did this to a swap and ended up buying an obd1. it was throwing a code even though i soldered each wire and car ran but had code