Hello, I had a question for anyone who may have already installed this kit. I went to put on the kit tonight and I have an installation question. A picture in the instructions shows that I take off the solenoid pump. When I do this, I leave a diamond-shaped hole in the bottom of the airbox, that the black blanking cap doesn't cover. The black blanking cap does fit onto the solenoid where the hose used to attach. What am I doing wrong here? I thought that I would be able to remove this pump.