hi i am in just took my engine out of my crx a d15, i just bought a d16 vtec. what should i do for wireing. its all different. i think i can take the distributer off and the intake manafold and use the d15 one to make my d15 wireharness work. but will the p28 ecu plug into my stock wires or what???

 

Please, do us all a favor and READ... ALL the information you seek is in the FAQs... All of your questions are the same ones that get asked thousands of times over.

https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/88-91-crx-ef-civic-frequently-asked-questions-faqs-1508680/

If you want your engine to run right (I assume you have the D16Z6) you will need to convert to OBD-1 and run the P28... Obviously NO, it will not plug into your harness. You have a LOT of research to do. I also assume you are DPFI so you need to do the MPFI swap... You may be in pretty deep - there is a lot tha could go wrong, educate yourself.

 

your going to have to do a dpfi to mpfi swap then convert it to obd1. start googling.