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What is the reason for the check engine light on?

(2001 Jaguar S-Type)
in El Cajon, CA on May 07, 2010
the check engine light just turned on today but the car feels great. what should i check?
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Popular Answer
on May 08, 2010
The Check Engine Light indicates the vehicle's computer has detected a failure in one or more components of the emission control system. You will need to retrieve the codes stored in the computer to troubleshoot the problem. More info here; http://repairpal.com/check-engine-light
on December 17, 2010
Probably a CO2 Sensor!
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