2001 honda prelude automatic idle drop in reverse

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^ oh ok cool mine is very similar to that photo, i would try that out first as you mentioned cleaning the screen on the iacv because thats a pretty hefty amount of cash for the part, if your going to completely remove it from the intake manifold to clean you will lose some coolant so i recommend that when you put it back to bled the cooling system so you dont get any air in the system and add coolant just to be on the safe side, i read a lot of threads of people cleaning and having worse conditions but i strongly believe is because of this important neglected step