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My check engine light is not workin at all..I have checked the fuses, and other

(1990 Mercedes-Benz 300E)
in Citrus Heights, CA on February 23, 2012
Failled the smog check because check engine light is not working at all
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Popular Answer
of Greg's Orange Auto on February 24, 2012
HAVE YOU CK'D THE BULB. THIS IS A COMMON PROB ON OLDER CARS.
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