1998 Mercury Marquis oxygen sensor

1998 MERCURY MARQUIS
137,000 MILES • V8 • 2WD • AUTOMATIC
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JUA1487
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  • 1 POST
the check engine light is on and i already took it to the mechanic and told me that was one of the two top sensors,because it has two more sensors,so i replaced them and its still the same thing. what can i do.
Feb 2, 2008 at 12:52 AM
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BLACKOP555
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  • 10,386 POSTS
you can start by telling me the exact code numbers.
Feb 2, 2008 at 9:00 AM