my car is now driving fine butsometimes when i get to a stop the idle goes a little lower than normal and it get kinda rough. since i had my d15b vtec swap i haven't change my cap and rotor or plug wire do you think this could be the problem?

 

Could be...does the idle surge, or is it just "rough"?

 

no it doesn't surge. its a little rough and a little low.

 

reset your idle.
unplug the IACV and turn the idle screw all the way in, it should almost die at this point, if it doesn't then you have a vacuum leak.....anyway, then turn the screw out SLOWLY till you reach the desired idle, and then plug the IACV back in.

simple......

good luck.

 

thanks