HELP!!! Check engine light (archive)

I'm getting ready to pour through my owners manual, but wondered if any of you know the causes for a check engine light to come on. The car is a '97 750iL with 72K miles. My wife was driving the car today and said she noticed the light was on, but not sure when it came on (it was not on last night when I drove it last).

Are there a million different things that cause it to come on? Is it safe to drive it to the dealer, or should I get it towed? Am I nervous over something that is potentially not a big deal?

Anyway, any help or insight is appreciated...

Kevin

Follow Ups:

Re: HELP!!! Check engine light JLP 16:57 5/06/2001 (0)
Re: HELP!!! Check engine light Geep2 16:03 5/06/2001 (0)
Re: HELP!!! Check engine light Geep2 16:01 5/06/2001 (0)
Check the O2 sensor first Henry 13:43 5/06/2001 (0)
Emissions Malfunction Indicator? Kevin 00:37 5/06/2001 (3)
- Re: Emissions Malfunction Indicator? calypso 750iL 12:15 5/06/2001 (2)
  - Also, any fear of driving it before being fixed? Kevin 12:26 5/06/2001 (0)
  - It wasn't covered by warranty? Kevin 12:25 5/06/2001 (0)

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