I have a jdm h22 in my hatch. I'm spraying with a 75 shot.....The IACV screen gets black sut on the screen and does the whole idle surging. I can clean the screen with carb and choke cleaner and it idle's fine, but as soon as I spray it, it starts doing it again. My question is can i do anything to prevent this or will busting the screen out of it help?????