As some of u know... I am doing a GSR motor (B18C1) and transmission swap into my DX/Base model Civic HB and I've been snagged by a question... will my interior wiring harness hook directly up to the OBD II ECU/Chip? Will I have to convert DPFI to MPFI? But will that set my motor to OBD I instead of OBD 0? Can I get a new chip and it plug in? What is the easiest and less time consuming way of solving this?

 

no. yes. buy a conversion harness

 

Honestly if you can afford it get a rywire harness to plug and play. If you can't then you'll need to either convert it to MPFI or swap over an SI engine and dash harness. Then use a distributor, ecu, injector and alternator adapters if your engine is OBD2(or cut and splice). I would not go OBD2 but go OBD1 P28 or P72 then wire up your VTEC, knock and IABs (p28 won't require knock or IABs).

 

Use a P28. Get it chipped and put a GSR base map on it.
Convert your car to mpfi, then get an obd0 to obd1 conversion harness.
Done.