This how to is dual purpose. One purpose is general on how to depin the male side of pretty much any Honda/Acura connector plug when swapping wiring around on various sensors (distributor, CKF, IAT, etc). Two is to show you how to swap over CKF connectors on 96-00 SOHC engines to the two wire styles used on OBD2 USDM B/H series engines so it'll plug into your factory harness. Tools you'll need are your hands, pliers (needle nose) and a small screw driver.
You see that the D series connector is 3 wire. I believe one is power, one is signal and one is ground. On the B series it is 2 wire. One is signal and one is power, and supposedly it is internally grounded. The plug connectors may differ in color but this is what they look like. Also the pin locations of the colored wires may differ but the colors should always match (blue on blue, white on white, etc) when swapping. The 3rd brown wire on the SOHC harness side won't be used so don't worry about it.
Start by removing the white center piece of the B series CKF connector with your pliers.
Next take your small screw driver and push up on the connector pin, while pulling out the wire at the same time on the backside of the plug. It should pull right out. Do this with the other wire as well.
Now take your 3 wire connector from your D series engine and do the same process with the white inner piece and 3 wires.
Here is with all 3 removed.
Now color matching pin location on the 3 wire connector on the D series engine harness side and the CKF wiring from the B series place the wires in the appropriate location. Don't worry they'll only go in one way. Then place the white piece back in.
Now you're done. May sure the white on the CKF side matches the white on the engine harness side and blue with blue. You're good to go.