Car has been sitting awhile finally let it run now the idle is surging up and down. I knew what it was cleaned the IAC still did the same thing. I purchased a new one kinda cheap part not sure if that's my problem or not. It's installed and still the same thing now I've heard the coolant system needs to be bleed out is that my issue. The throttle body was cleaned as well and is there or a procedure to be done can't drive it because it's getting a new paint job.