Well if you used the plates then the air aint going into the exhaust anymore. If you didn't remove the actual module under the tank then it'll still try to pump but it just won't go anywhere. I ripped all of it out and put electrical tape on the 2 connectors. The cap on the throttle body was for the carb'd versions. On our FI bikes the plug goes on the back of the air cleaner backing plate. You plug it so unfiltered air doesn't get inside the engine.