<snip>if it sat for a couple days, and it rained heavy right before I
started it, the car would start rough, come to idle, and then the SES light
would come on</snip>

I had the exact same problem you described on my '99 SC2. Figured out it was
a pinhole in one on the wires when I went to wiggle the connections at the
distributor after it rained and felt a strong tingle run up arm; replaced
the plug wires and all is well.

Steve

"The Real Tom" <Tom @ www.Love-Calculators.com> wrote in message
...
> On Tue, 05 Jul 2005 04:08:30 GMT, AnthonyS > wrote:
>
> >"Oppie" > wrote in
> :
> >
> >> Was this a start after sitting in heavy rain or driving in heavy
> >rain?
> >>
> >> Any idea what the service code is? I'd first consider a misfire due
> >to
> >> the wet ignition wires. Check the coil, distributor cap and rotor
> >and
> >> all the spark plug wires. Pull off the distributor cap and check
> >for
> >> any moisture inside. Should be dry as a bone.
> >
> >> .. .
> >>> On my 96 SL the "Service Engine Soon" comes on after a heavy rain.
> >>> After the car runs awhile (I guess until the wet area dries) the
> >car
> >>> will restart with no trouble light. The leak is most likely a
> >>> clogged drain allowing water to drip down the fire wall or other
> >>> spot. Has anyone found and solved this problem.... Thanks
> >>
> >>
> >>
> >
> >The condition occurs are sitting parked and starting after a heavy
> >rain.
>
>
> You'll love this, I had a 96SL2, if it sat for a couple days, and it
> rained heavy right before I started it, the car would start rough,
> come to idle, and then the SES light would come on. While driving to
> work, it would turn off.
>
> I replaced the plugs and wires. Ofcourse cleaned off the ignition
> posts, and the problem seem to go away.
>
> Now I figured it was a bad connection, or wire, so I hope a simple fix
> like mine works for you, since each car is unique at times.
> later,
>
> tom @ www.CarFleaMarket.com