I have a 92 Vx Civic hatchback w/ a stockt D16z6. The idle is really rough and the idle rpm is really low, especially after running it on the freeway for awhile and then come to a stop in neutral the rpms damn near drop to almost zero according to the tach. Sometimes it even shuts off, but starts back up. There is no problem at all while im driving it, its just when i dont give it any gas at idle. It already has new spark plugs, plug wires, dizzy cap and rotor, igniter, coil, and air filter. There are no obvious leaks in any of the vacuum lines. The timing is correct. I even ran a fuel injector cleaner throught the fuel system and still have the problem. The weird thing is that this problem didnt start until right after i adjusted the valves on it. I even readjusted the valves again and had them double checked. Ive adjusted the valves on this car before the same way and know that shoudlnt have caused this problem. If any of you have ever had this problem it would be appreciated in sharing how you corrected it. Thanks

 

might want to try to adjust the IACV. that might help with your problem.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pat92si &raquo;</TD></TR><TR><TD CLASS="quote">might want to try to adjust the IACV. that might help with your problem.</TD></TR></TABLE>

i've also heard that cleaning this helps immensly. Just search for a diy on it, i've seen one here before.

 

Bent Valves. Get a Leak Down.

 

here is a link to cleaning that madness, check it out https://honda-tech.com/zerothread?id=1575913

 

thanks. i'll check it out for sure and let you guys know if that worked or not. latez.