Hi my name is Mike, I had way too much problems with my friedns 2step mod since there isnt much love for Europe Accords. After 2 days of going thru schematics I made it work, its very simple once you know which cables to use.

You got your Bee-R (Type H for Honda, others wont work, there is issue with V-Tec or something)

Your ECU is hidden behind your carpet on passengers left footwell, bend carpet and you will see metal box with 3 plugs. (this was OBD 1 car, it should be same also for OBD2 car, but there will be 4 cables and connectors)

You got: Red +12V (power supply of any kind. But you want to use something that turns on with ignition. But you can also connect to battery directly.)
Black GND( ground, negative. Connect to any screw thats connected to metal body of car,)

For power (RED and BLACK) I used first two wires from connector B (that is the middle one, 2nd from left) and Wire 1 (+12V) (Yellow and black) with Wire 2 (GND) (Black)
Green Green is what I call "The Engine side" it goes from BeeR right under the hood to engine. (
Yellow Yellow is "The ECU side" it goes from BeeR to ECU.
White If you apply GND to white cable, it will activate launch control on the BeeR unit.

First of all, you want to locate Connector B and Pin 13, look at the picture. Cable will be Yellow/Green and above it will be blue wire. You want to cut right in the middle of that Yellow Green wire, solder Yellow wire from BeeR to the connector (plug from ECU) side cable ("The ECU side") and green rest of the cable (thats going away from the ECU, somewhere under the hood)

In the picture you can see I got blue wire, I had to extend my wire and I had blue laying around, so my Green wire is actually blue.
Last thing you want to do is cut the small gray (not white, not brown) wire. (Cutting gray wire will set BeeR to 4cyl mode) (if you leave them all, its set for 6cyl and if you cut brown you got rotary.) Just cut it.

Few pics and schematics down bellow. Let me know if I helped you, it took lot of work and fails to make this work right.


Cut wire 13 in half, part close to the plug solder to yellow, other one to green. ( I used blue, had to extend wire)

 

welcome to the forum thank you for the info and diagrams, hope it will help other members doing this t/s.

 

There is a video, just cold air intake, catless with catback.