My check engine light is on. What does this mean?
I have a 90 buick lesabre.
Feb 8, 2011 at 10:01 AM
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RASMATAZ
✓Experienced Mechanic
75,988 POSTS
Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis,finding out what's going on.