In article >, Buzz > wrote:
>My '96 SL single cam has 185K on the clock, and has been running fine.
>A few weeks ago I changed the oil and hosed off the motor with a
>garden hose.

Why the hell did you do that???

> Then the "Service Engine" light came on, but it was
>running fine. A few days later it went off, and my buddy at work
>hooked up his code readed and said it had a EGR related code in the
>memory.

Do you think you might have sprayed water on some electronics that weren't
supposed to get water sprayed on them?

>I drove it a couple of weeks, and light stayed off. It wouldn't start
>the other day, and wiggling the battery terminals got it to start, so
>I drove it home and cleaned the terminals, which really didn't look
>bad at all, but I polished them bright with a wire wheel.
>
>The next time I drove it after the terminal cleaning, the engine had a
>high idle, and would race up to 3000 RPM when I would clutch it
>between gears. the idle would eventully settle down to 750 RPM.
>Drove it to work today, and it still would race up between gears,
>almost like I wasn't letting off the gas pedal when shifting. When I
>would put it in neutral coasting up to a stop, the engine would be at
>2000 RPM, then slowly drop to a 750 RPM idle. No check engine light
>is coming on at this time.
>
> What could be causing this?

Hosing off the motor with a garden hose.