i had this problem on my b16 civic. i think it cost like almost 100 or something for a new IACV, but it fixed my problem as soon as i installed it.

 

...I fixed it. I accidentally connected the wrong plug into the 2P connection and that was what was causing all the trouble. It's running the best it has since I;ve owned it. It has a smooth idle with no vibrations and a more responsive throttle.


Thanks for the help!

 

Definately your idle control valve

 

u prolly got the plugs mixed up when puttin back, check them out. should work man 4 real.


Edit: ops i didnt read the whole thing, i see now you had wrong plug, and its all workin good. Glad ya got it all fixed up tho

 

I would still try to find a replacement bolt for the IACV. maybe junkyard the bolt from any Honda IACV will work!