Well I was looking at a couple of things at my shop the other day while I still have the d15b vtec on the engine stand. I was wondering if the accelerater cable from my d15b2 will work with my new motor cause it looks longer and is placed different since the intake manifolds are completly different and also if my fuel lines will work also thnx p.s. car is a 91 honda crx DX

 

the fuel lines should work. you will need the throttle cable from a si or hf . they are shorter.

 

i did this swap on my dx and my brothers si we did not have to modifie the throttle cable or fuel lines at all!!! only thing that had to be modified in anyway was the engine bracket on the driver side that go's into the mount has to be swaped on from your old motor thats it and well of course the dx had to be modified in 6 ways 4 injector wires and 2 cps wires thats it

 

You can get away with using the DX throttle cable, but eventually, you will want to use a Si throttle cable.