Have you checked out the wiring information in the install faq on
http://www.heavythrottle.com ? They have the needed wire colors and what they should be connected to. As for the carbon canister stuff, you don't need it. I am not as familiar with the S14 SR as with the S13 SR but I don't think you need the black plastic piece as I think it's part of the carbon canister stuff. If the brown solenoid has vaccuum lines coming from it to the throttle body, it is the boost solenoid which you can avoid completely. If you have any other questions, feel free to post them.