well here is the deal my friend has a b16a in his 94 civic the motor he had in it was the D15b7. now the guys that put his motor in are morons so here is where we stand. it throws a 17 ecu code(speed sensor that explains why the speedo works on and off) and number 1 code being the O2 sensor. now we need to completely redo the O2 wires. they mutilated the harness so where do i need to put what wires. the O2 sensor has the green, white, and 2 black wires. what goes where.