i had a b18a1 in my civic and now swapping the j-spec gen2 b16a i came across a few problems.my b18a1 had 3 sensors on the back of the block.the b16a has only 2(one being a knock sensor) what and how am i suppose to work this out ? my car is mpfi and still running obd-0 ecu's.i have searched and still no info on this.any help is appreciated.i honestly have no clue where to go and the sensor ordeal is the only thing stopping my swap from going in.