Posting for a buddy so I will provide all the info I have.
My buddy bought a 88 crx with a b20/b16 head combo. Ever since he bought the vehicle it's had a nasty idle surge and has been trying to get it to calm down. So far we have done the following
Bled the cooling system
Removed TB, fast idle, IAC and cleaned them,
Adjusted fast idle and idle set screw
Sprayed break clean for leaks, as well as smoke.
He is going to replace the fast idle but he is unsure which kind to buy since he is unfamiliar with Hondas and he is unsure which parts interchange with this head.
Which IAC,FIAC, throttle body, will work with a JDM B16 head, casting number PR3-4. Because he will replace both of need be, just unsure where to look.
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