EG ls Vtec

hey guys i seached and from alot of stuff but nothing like mine i got a ls vtec in a eg civic its got a b18b block and a b16a head.
Heres what it does i go out to start it when it is cold and it wont idle or it will idle at 500rpms and it has a real rough idle and is burning real rich you can see the black smoke coming out of it and my bumper has turned black just from the car idleing for 2 mins, but when the car comes up to temp it will idle like a dream and is not rich anymore.
kyle

ATS*EG2

i would check your iac valve in the bottom of your throttle body. it should be sucking air when cold and closed when hot. in the throttle body the lower port hole is the inlet for the iac valve. good luck

EG ls Vtec

well i think your talking about the fitv right becuase the iac is on the back of the manifold. well my fitv under the throttle body is turned in all the way it was out like 4 turns but i seached on here and everyone siad to turn it back in so i did but when it was out 4 turns the bottom hole was sucking harder then when i turned it all the way in but still with the bottom hole sucking the car didnt idle right it would idle at 1000 but real rough and still rich and when i turned it in it went down to 500rpm but the same real rough and rich