i dont know KA24E, just DE
but the IIAV is at back of intake manifold
it gets really dirty you have remove it and clean it (carb cleaner works great)
um...might saerch mode on IIAV and find out how to do it for 89/90 engines.
also clean/get nwe air filter, my car was idle like crap till i slapped it on the pavement yesterday adn now it runs great .hahaha..too many dusty tracks at events! that and tire dust..bleh
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