ok i have a 89 crx si i bought a 92-95 d15b motor to put in it. what all well i need to do to put this motor in and can i use the factory harness if so what all well need done to it
here is what i bought to do this swap so far
1 i bought a obdo to obdo1 conversion kit
2 a obdo1 distributor
3 a p 28 ecu
4 i have the dizzy adator to obd0 to obd1
5 i have the vtec wireing harness


ok i have mor in car and everything hooked up but car wont start act likes it want to but wont

 

first thing use the search and google to find your answer its been covered time after time

but since you cant seem to figure that out you can use the intake manifold header everything from the si engine can be transferred to the new engine use same engine wiring harness and ecu if you would like but since its vtec you will also have to run vtec solenoid wire and you can tap the pressure sensor wire into the solenoid wire.. if you use the stock harness which is preferred you will need to re pin the distributor or by a jumper harness. its a easy swap and could be done easily in 4 hours..

but please next time SEARCH before you post.

 

as stated above...

u will need to add vtec to your harness, convert to 4 wire o2 and swap to obd1 dizzy plugs.

 

you have the parts it seems just put the thing together...use the wiring guide that came with your conversion harness. use your engine harness that goes with the car. youll only need to change a few plugs (add the 4wire o2 plug, change plug and extend the fan switch to the thermostat housing)