ok..i have a b16 swap in my 4 door civic and one day i went to start it up and i heard the heavy suckin noise coming thru my k&n filter...i thought since i blew it out i was suckin mad air..but my car idles at like 2-2500 rpm and when it sits for a bit mildly gor to like 1500 rpm constant. here are the list of things i have tried:
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1. tested both map and tps with a voltmeter<br />
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2. checked for holes in the intake manifold and gasket<br />
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3. adjusted the fuel pressure regulator<br />
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4. cleaned the iacv<br />
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one thing i found odd was when i took off the intake tube there is a hole that leads to the iacv..when i cover it up the care runs brand new..when i take my hand off i goes back to sucking hard..lol is there something missing or do i need to get a new iacv?? thanks guys

 

do you have the correct iacv and throttle body for the b16?

 

If you cover the hole and it runs fine than the iacv is the problem. Replace it, and it should fix your problem. You can block it off if you want as well.

 

cool..thanks

 

it was the one that came with the motor...but i have heard you can use the one from a d16z6 as well...guess im off to the junk..umm salvage yard...i'll holla back if i dont find one..i live in arkansas now so it might be pretty scarce...

 

Try taking off the i.a.c.v and cleaning it. Do you hear and humming noise coming from it when the ignition is on?? Do you have a cel

 

Sorry I didn't see you cleaned it lol. try listening to it though to see if the motor inside is working.

 

i cleaned it but didnt listen to the motor but imma just get another one..besides i gotta up grade the front suspension of my car so its gonna be a minute b4 i can play in the streets again...thanks alot yal