Ok i have a 95 rs, i just spun rod bearings and the motor is shot, so i just bought a new motor but it is an OBD1 b18a1 the old motor was a b1 and the A1 has 2 sensors on the back of the block right under the solid coolant pipe and there is nothing there on the stock motor. are these used somehow, because i dont have any harnesses that plug in there.

anything helps,

Thanks