rbrown1@gmail.com wrote in
news:1159446451.433387.119050@e3g2000cwe.googlegro ups.com:


<snip>


>
>
>> What speed is it idling at before it stalls?
>
> Under 1000 rpm. It is hard to tell what the scale is, but usually
> it's one mark under the 1000 mark. The idle tends to drift a bit
> above and below this mark.



Oho, so it's fluctuating! An interesting piece of information. The idle
should be rock steady.

At idle, full warm, you should be 750rpm in Drive. If you're around
1000rpm and fluctuating at that, I must ask these questions:
1) When was the last time the cooling system was drained and refilled?
2) How old is the thermostat?
3) What does the fluid look like when you pull the rad cap (cold!)



>
>> How old are the plugs and plug wires?
>
>
> I just replaced the plugs with NGK this month. I had a misfire last
> month while idling and figured it was time to replace the plugs (they
> were 4 years old with about 25k on them, but didn't look too bad when
> I took them out). The wires are original. The car is a 99 with 47k
> miles.
>


Your wires are seven years old. Time for new ones (OEM, of course). Old
ones will leak current in damp weather, resulting in a weaker spark than
what you should have, and worse combustion. Wires that are poor enough
can cause hunting idle.

Right now I suspect your problem has absolutely nothing to do with the
IAC or the throttle body.

--
TeGGeR®

The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/