hey guys, just getting to the wiring section of my swap and ive done some searching on it and might have a conclusion, but just need to be sure. i have a b16a obd1 engine that im putting into my crx hf and im running the pr3 ecu. im really trying to do it the DIY way and save some money by not buying some of the great sub-harnesses out there so i was wondering if i could take my hf harness and just repin it at the pr3 ecu. would all i really have to do is buy the pr3 ecu blocks and follow this diagram ( http://tech2.hybridgarage.com/...pr3_a )? or should i just make my own sub harness instead? also, any info on where to buy the ecu blocks and wires from. thanks for all the help.

 

bump to the top.

 

bump for morning crew.

 

The easiest thing of course would be to use OBD0 electronics on the motor: OBD0 B16A or modded 90-91 Integra distributor, injectors with resistor box and a PR3/PW0 ECU which would be plug and play with your cabin harness ECU plugs.
If you go OBD1 then you will need to at least get an OBD0 to OBD1 ECU jumper harness. If not you'll need OBD1 ECU plugs and do a lot of rewiring. In addition to that there will be more wiring involved, mainly why some people avoid doing it and stay OBD0.

 

what other wiring will there be besides the harness and the vtec wires? i thought it was smooth after that?

 

if you are chaning everything from a obd0 motor and trying to make it obd1 there are alot more parts than you think. not crazy stuff but alot of plugs need to be replaced. and just a whole bunch of stuff i will post up the list once i get the car running i am in the process of having this done by a friend and once we can figure out why the car won't spark i will let you know.

 

i said in the first post, the engine is already obd1.