So i got a motor from the neighborhood auto solon and they sent me a j-spec engine (b18b). They cxan't tell my mechanic how the hell to switch them and there's no shop in the area that has expirience with swaps. The problem my mechanic had with the motor was the crank sensor on the american block (b18b1). he is uncomfortable putting in the new motor without knowing how to swap the sensor. can any one tell me how to change the sensor and what other problems may exsist?