im putting a usdm 2000 b20z2 in my 94 ls integra. im reusing my alternator, dizzy and intake mani. if i use my old harness, will it bolt right up? do i leave my old injectors on the mani? the harness that came with the motor doesnt have a break in it. it goes from the ecu stait to the motor with no break in between. do i need to wire the knock sensor? what othe sensors are affected buy using the old harness?