i have a d16y7 for a 89 crx si
the y7 engine with your SI tranny on it will bolt directly into your crx you should not have to wire anything as long as your crx is an SI. at most you may need to extend your coolent temp sensor/fan relay which on the y7 i beleive is on the thermostat houseing and on your original motor is on the back of the block.
-J
-J



