91 prelude si wont idle

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New Member
okay i have been working on a prelude and for some reason it will not ideal it will rev from 1200rpms to 2200 rpms... i have replace almost all the sensors off of the intake..what could be making it do this... once you rev passed the 2200 rpms the car is smooth and runs great just when you come to a stop it does this help!!! thnaks
could be a multitude of things.
check the iacv, make sure the wax ring inside is screwed down all the way.
clean out your eacv with some carb cleaner.
check the intake manifold gaskets.
when was the last time you did a coolant flush?
if you think its the HG, do a compression test.