Ok, Im putting a b18c1 into my 94 EX. Physically getting the motor in there is not a problem, but the wiring is killing me. I was talking to my local shop today and they said I will need to extend alot of the sensor wires which is not a problem(cut, and more wire, solder and shrink wrap right?) and I know I will need to run a knock sensor wire also. The one that is confusing me is for the second set of butterflies on the intake manifold. Can someone explain this to me a little more clearly? Also is there any other things I should be aware of? If you have any pics of this swap being done I would really apprieciate it.

BTW, I was looking through the forum a few weeks back and someone had some wiring diagrams posted, anychance whoever that was could post it up in this thread for me.

 

Basically. Wire up everything you have from your EX harness. Add knock sensor to D3..

With the secondary butterflies, you need to hook up the IAB box on the bottom part of the intake manifold.

Using an OBD1 P72 ECU, you will need one wire going to A17, and the other wire going to a 12v voltage source.

Make sure vacuum lines are properly put in, no leaks. And you're done.

 

if you have an ex model then the wiring should all just clip in and dont have to add any other wires since ex is equipped with vtec otherwise you can check wiring diagrams at hybrid.honda-perf.org