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.