I have a 95 accord ex w/vtec. I had the motor rebuilt, but the block was bad, so I used a block from a 93 accord. Now the vtec won't engage. I get no codes concerning the vtec. Can anyone tell me if the block has anything to do with the vtec not functioning??? The top half of the motor and the head are the original ones that came with the motor. Also, does the crankshaft have anything to do with it??? I am new to owning an import, so my knowledge is limited, so bare with me. I have some mechanical experience, but not with Hondas, especially not with a vtec motor. Any info would be greatly appreciated!!! Thanks!