cant see to get the warm idle any lower than about 1000-1100 rpms. set screw is all the way tight. With iac unplugged, the idle drops to about 900rpms. what other adjustments is there? All vacuum lines are correct.

 

take off your fitv and and unbolt the two 8mm bolts you'll see a white screw plug use two screw drivers and tighten it down don't force it tighten it until snug, it can become loose overtime not closing properly after your car is warmed up during initial start up, causing a vacuum leak, also check to see if your iacv is clogged if it is clean it.

 

would iac being clogged still effect the idle if it is not plugged in? imma check wah u said tomorrow is dark outside already tyvm

 

from my own adjustments, when i unplug the iacv the idle is very low to a point where the car is going to die, i readjusted my fitv and clean out my iacv with some simple green and it idles right at 750 now, when your iacv is unplugged if its clog and you try to adjust your idle will still be off

 

fix the fitv and clean your iacv, then adjustment and check back.

 

If your IACV has been cleaned its probably your FITV. Take it apart as stated above and clean it real well. Then make sure the plastic dome is screwed all the way in. Also you can adjust your dizzy forward or backwards to adjust idle while the is on.

 

my b16 warm idles from 800 to 1100 rpm. i think its just the way the motor is... possibly the cooling..

 

My n16a warm idles right at 1000 and my idle screw is all the way in and my diz is set a bit retarded too. Im just gunna leave it like that for now

 

still havent got a chance to check it out yet.. its been raining from stupid hurricanes like all weekend.. never thought about the dizzy, need to time the motor still just havent had a chance yet. just tore down motor and replaced headgasket, and all seals. its been sitting for a few years and getting ready to boost it thought id fix all the stupid little oil leaks and stuff before hand.

 

As others have suggested, clean IACV and tighten FITV.



Make sure that your engine timing is correct and that the ignition timing is correct. Then adjust idle using this sequence.

 

Have you pulled off your throttle position sensor recently? if you re-install it wrong it will hold the throttle open slightly. Did it to mine once on accident.

 

just a curious question, would a crv tb work the same as my b16 one? friend has one, and i can not tell if they are the same size. If it will work ill just swap them first to see if that fixes it! plus it should help me clean up my firewall!