Honda Car Forum

Disconnect the battery for a minute to reset the ECU. If the condition is
still there try cleaning the throttle body/ idle air control valve. I have
also seen alot of the temperature sensors causing idle problems. It is
located under the distributor. Keep me informed.

David Short
Acura God

"Dan Inman" <dwinman@earthlink.net> wrote in message
news:UEZMa.23589$C83.2223446@newsread1.prod.itd.ea rthlink.net...
> Hi, the idle on my '86 Legend with standard tranny, is surging only when
> warm. Any thoughts as to what/how I might diagnose the problem?
> TIA
> Dan
>
>

Many times Hondas will surge if they are low on coolant. Also the fast idle
valve (thermowax) can cause a surge. On 86 and 87 Legends (sedan, 2.5L) if
you have a SEVERE surge many times it is cause by a nasty corrosion problem
in the intake manifold.

"Acura God" <djshort@NOSPAMlightbound.com> wrote in message
news:_J1Na.50$hO4.96710@news.uswest.net...
> Disconnect the battery for a minute to reset the ECU. If the condition is
> still there try cleaning the throttle body/ idle air control valve. I have
> also seen alot of the temperature sensors causing idle problems. It is
> located under the distributor. Keep me informed.
>
> David Short
> Acura God
>
> "Dan Inman" <dwinman@earthlink.net> wrote in message
> news:UEZMa.23589$C83.2223446@newsread1.prod.itd.ea rthlink.net...
> > Hi, the idle on my '86 Legend with standard tranny, is surging only when
> > warm. Any thoughts as to what/how I might diagnose the problem?
> > TIA
> > Dan
> >
> >
>
>