Using your K - Tuned K - Series Purge Port Plug is easy. First, make sure you have the right throttle body that this plug is compatible with. It works on most OEM and aftermarket throttle bodies, but not the 05 - 06 OEM RSX throttle body (Z1). Before installation, check that the o - ring on the plug is in good condition. Then, carefully insert the plug into the EVAP/Purge port on your throttle body. You'll need an engine management system to disable the purge function.
As for maintenance, keep the plug clean. You can wipe it with a dry cloth from time to time. If the o - ring shows signs of wear or damage, replace it to ensure a proper seal. Always follow the vehicle's maintenance schedule and consult a professional if you're unsure about anything.