ok ive got an ls swapped civic... i came across a little stumble in my throttle response so i checked the plugs and wires and such. come to find out the throttle body was CAKED in carbon stuff.. so i used some of the b12 chemtool stuff that you suck up in a vacuum line and i sprayed the tb butterfly and such.. now my car idles at like 1100 rpm.. wtf? so i pulled the iacv off and it was all gummed up so i cleaned it and started and idled at 800....2 secs later it went back to 1100.. any help will be repped thanks