been there..... done that.
this could be a few things. one is the idle stabilizer. It is on the
drivers side infront of the coil. They are either green or black. Two
round plugs on the bottom. The plugs will plug into each other so you
could bypass this thing. Another thing that can cause this is a bad temp2
sendor. There is way to check this sensor based on teh resistance and
temp. You measure the resistance across the leads when the car is cold
(like sitting all night). Then look in the big green bible, i mean
Bentley, at the chart and see if your resistance is correct.

how is your gas milage? Poor? Are you puffing black smoke? You oxygen
sensor could be bad instead or also.

cheers
matthew

Matthew Pollard          "Racing with the wind and flirting with death
Dept. Of Chemistry        So have a cup of coffee and catch your breath"
University of Idaho
www.uidaho.edu/~poll7356

On Mon, 28 Jan 2002, joseph Trussell wrote:

> Hi List,
> I have a new idle problem on my '85 1.9.
> It'll start up and idle fine during warmup, but then when it gets warm, the
> idle surges to 1200 RPM, then back to 900, over and over again.  Sometimes
> it'll stop doing that for a few minutes, then start doing it again, always
> when it's warm.
>
> I checked the archives and kept seeing stuff about the Idle Stabilizer
> Relay, but all on '86-91 motors.  Is there an equivalent device on my motor
> that could be causing this new problem?
>
> Thanks in Advance.
> Joe T.
> Denver, CO
> '85 GL "bertha"
>
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